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Hearing aid loop: how to connect and use it

A hearing aid loop, also called a loop for hearing aids, is a specialised type of sound system created to support people who use hearing aids. It is often referred to as an audio induction loop or simply an induction loop. This system sends out a magnetic, wireless audio signal that can be picked up directly by a hearing aid when it is switched to the “T” (Telecoil) or Loop programme. Because it broadcasts straight into a wide range of hearing aids without the need for any extra receivers, it remains one of the most widely used and accessible assistive listening solutions in public spaces. A hearing loop setup includes an audio source linked to an amplifier, which processes the incoming sound and feeds it into the loop cable.

The loop cable—usually a wire installed around the perimeter of a room such as a church, waiting area or meeting space—creates the magnetic field needed to transmit the signal. More complex venues may require specially designed loop layouts to ensure full coverage. The audio input can vary widely. While speech from a microphone is common, a hearing loop can relay any audio source, from TV sound in a living room to transport announcements or theatre sound systems.

Whati is a hearing aid T-loop?

A hearing loop (also called an audio induction loop or T-loop) is a type of assistive listening system that enables users of hearing aids or cochlear implants with a telecoil (T-coil) to receive sound directly, clearly and without background noise. Here’s how it works: A microphone or other audio input captures the sound, such as speech, announcements or music. That signal is connected to an amplifier and transmitted through a loop of copper wire installed around a room, seating area or service counter. This wire creates a magnetic field within the looped zone. When a hearing aid or implant is switched to the “T” programme, the telecoil picks up the magnetic signal and converts it into sound delivered straight into the wearer’s ear. Because the system bypasses room acoustics and background sounds, the user hears clearer, more intelligible audio. The major benefit of a hearing loop is the significant improvement in sound clarity for people with hearing loss, especially in public venues such as theatres, banks, ticket counters, meeting rooms and places of worship. These systems help reduce listening effort and improve communication confidence. Before using a loop, it’s important to ensure the hearing aid has an active telecoil and that the venue is equipped with a loop system, usually indicated by the standard hearing-loop symbol.

What is the loop setting on a hearing aid?

The loop setting on a hearing aid — often labelled “T” or “T-coil” — is a programme that allows the device to pick up sound from a hearing loop system (also called an induction loop). When this setting is activated, the hearing aid’s telecoil receives audio signals transmitted through a magnetic field created by the loop. Instead of using the hearing aid’s microphones, the telecoil directly captures the sound fed into the loop system (for example, from a public-address system, microphone, or counter intercom). This bypasses background noise and room echo, giving the user clearer, more focused sound. Most hearing aids have three common modes:

  • M (Microphone) – uses the hearing aid microphones to pick up surrounding sounds.
  • T (Telecoil/Loop) – picks up sound only from the induction loop system.
  • MT (Microphone + Telecoil) – mixes environmental sound with the loop signal.

The loop setting is mainly used in places equipped with hearing loops, such as theatres, churches, banks, ticket counters and meeting rooms. It is especially helpful in noisy environments where speech clarity is important. Not all hearing aids have a telecoil by default, so users may need to ask their audiologist to check compatibility or activate the programme.

What is a hearing aid loop system?

  • A loop system (also called a hearing loop or induction loop) is an assistive listening solution designed to make public spaces more accessible for people who are deaf or have hearing loss. 
  • These systems are commonly installed in noisy environments such as train stations, banks, cinemas and theatres, where clear communication is essential.
  • The presence of a hearing loop is usually shown by a symbol featuring an ear with a diagonal line through it, often accompanied by a “T” and typically displayed on a blue background. This sign indicates that a telecoil-compatible hearing aid or implant can receive sound directly through the loop system.
  • A telecoil is a small copper coil built into many hearing aids and cochlear implant processors. It acts as a receiver, capturing the magnetic signal from the loop and converting it into sound. By switching their device to the telecoil or “T” setting, users can hear audio broadcast through the loop clearly and directly.
  • Earhooks and neckloops are accessories that connect to the 3.5 mm headphone socket on certain devices and transmit audio straight to the telecoil in a hearing aid or implant. Earhooks sit behind the ear, while neckloops are worn around the neck. 
  • Although most neckloops include break-away safety features, they are not suitable for children under 36 months. These accessories are less common today, as many hearing devices now support direct Bluetooth streaming.
  • Where to get loop systems: Loop systems can be purchased from a range of retailers offering assistive listening technology. In some cases, individuals may also be eligible for financial support or equipment through local services that provide assistive technology.

How do I know if my hearing aid has a loop?

A hearing aid loop system—also known as an induction loop system, hearing loop, or T-loop—is an assistive listening technology designed to help people with hearing loss hear more clearly in public or noisy environments. It works by transmitting sound wirelessly through a magnetic field directly to hearing aids or cochlear implants equipped with a telecoil (T-coil).

How it works

  • Sound source: A microphone, PA system, or audio device captures speech or music.
  • Loop amplifier: The audio signal is sent to an amplifier that drives a loop of copper wire installed around a room, seating area, or service counter.
  • Magnetic field: The loop creates a magnetic signal that corresponds to the sound.
  • Telecoil reception: When a hearing aid is switched to the “T” setting, its telecoil picks up the magnetic signal and converts it into sound inside the ear.

Why loop systems are used

  • They bypass background noise and echo, delivering clearer sound than using hearing aid microphones alone.
  • They improve speech understanding in challenging environments.
  • They allow hearing-aid users to connect effortlessly without additional devices.

Where they are found

  • Loop systems are commonly installed in theatres, churches, meeting rooms, banks, ticket counters, airports, classrooms, and other public spaces. They help create more accessible environments for people with hearing loss.
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How do I know if my hearing aid has a loop?

If you’re wondering whether your hearing aid has a built-in loop (telecoil or “T-coil”), here are key things to check — and how to find out.
Firstly, ask your audiologist. They can look at your hearing aid’s specification sheet and tell you whether a telecoil is included and activated.
Here are some practical signs:
  • Check if your hearing aid has a switch, button or programme marked “T”, “M/T”, or “Loop”. If it does, that suggests a telecoil is present.
  • Confirm the model name: some manufacturers include a “T” suffix in the model name (for example “Model X-T”) to indicate telecoil support.
  • Note the size and style: very small “in-ear” or “completely-in-canal” models often do not contain a telecoil because of space limitations.
  • You can also test it yourself: switch your hearing aid to the “T” programme and walk into a venue with a loop system (look for the loop symbol). If you clearly hear sound through the hearing aid with its microphone effectively bypassed, you likely have a working telecoil.
  • Finally, check the user manual or ask your audiologist whether the telecoil has been activated and programmed for your use.

 

How do I know if my hearing aid is compatible?

If your hearing aid has a clear “T” option on its programme switch, this usually indicates that the telecoil or loop setting is available. However, many modern hearing aids do not show their programme options externally, so you may not be able to tell just by looking. For this reason, it is essential to check with your audiologist. In some cases, a hearing aid may contain a telecoil but have it switched off by default. Your audiologist can confirm whether a telecoil is fitted and activate the feature if needed. They can also advise whether a telecoil-compatible accessory is available to use alongside your hearing aid. Such accessories are not always included when the hearing aid is provided and may involve an additional cost.

Can it be used with a cochlear implant?

In most cases, yes. Many cochlear implant processors are compatible with hearing loops, but this depends on the specific model you use. When you receive an implant, make sure to ask your implant team which settings or programmes support loop use. They can explain how the telecoil feature works with your processor and advise you on any model-specific functions or adjustments needed.

Can you use one without a hearing aid?

Yes. People without a hearing aid can still access the sound through a dedicated loop listening device. Many venues keep these available so that individuals who do not have a compatible hearing aid can still benefit from the hearing loop system.
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Where can hearing loops be used?

Loops for hearing aids can be used in many different environments to make communication clearer for people with hearing loss. They are especially effective in places where one-to-one interaction happens, such as reception desks, checkout counters, ticket offices and customer service points, where a user needs direct and intelligible sound. For larger spaces, large-area hearing loops are installed to deliver clear audio to groups of people. These systems are commonly found in theatres, cinemas, places of worship, lecture halls, community centres and courtrooms, where they help audiences hear speech easily, even in challenging acoustic conditions. Hearing loops appear in a wide range of public locations. You may find them at service counters in shops, banks, libraries and hospitals. They are also present on public transport, in meeting rooms, at help points, in intercom systems and in guided-tour settings such as museums. When you are out and about, you might encounter them in cinemas, theatres or visitor attractions. Wherever a loop is available, it is clearly marked with the internationally recognised hearing loop symbol, indicating that a hearing aid in the “T” or Loop setting can be used. These systems promote equal access by providing reliable, high-quality sound for people with hearing loss.

Why should you install a hearing loop?

  • It reduces or removes distracting background noise.
  • Users do not need separate receivers or headsets.
  • Sound is transmitted straight into the hearing aid for clearer, more natural listening.
  • Anyone with a compatible hearing aid can benefit instantly
  • The system is discreet and unobtrusive in use.
  • It offers a highly cost-effective accessibility solution.
  • An unlimited number of people can use the loop at the same time.
  • It can be designed to suit spaces of virtually any size, from small counters to large venues.
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What is the cost of a hearing loop?

The cost of installing a hearing loop (induction loop) system varies significantly depending on the size of the area, complexity of the installation and building conditions. For small service counters or reception desks, you can expect installation costs around £250–£400 in the UK for a simple setup. For more standard or room-sized systems—such as meeting rooms or small auditoria—the equipment cost alone in online shops typically ranges from £150–£420 for loop kits or amplifiers. On the higher end, for large venues such as theatres, large auditoria or arenas, installation and system design can range from US $11,000 to $35,000 for mid-sized venues, and up to $50,000 to $200,000 for very large spaces.

In practical terms, a small business or counter installation usually requires a budget of a few hundred pounds; a modest room system may cost a few hundred to low thousands; and large-scale venues must plan for many thousands or even tens of thousands. Equipment alone can often cost under £300, but when wiring, building work, acoustic challenges and certification are required, overall costs rise substantially. It is generally advisable to obtain quotes from specialist installers who can assess the space and building structure before committing to a final design and installation plan.

Legal requirements around hearing aid loops

In the UK, several laws and regulations protect people who are deaf or have hearing loss and set expectations for providing accessible audio. The Equality Act 2010, along with the Disability Discrimination Act in Northern Ireland, makes it unlawful for service providers to discriminate by refusing a service or offering one of a poorer standard to someone with hearing loss. Further guidance is outlined by the Department for Communities and Local Government in The Building Regulations 2010 – Access and Use of Buildings. These regulations emphasise that everyone should be able to access and use all facilities within a building. They specify that, to fully participate in situations such as discussions, presentations or performances, a person with hearing loss must receive sound that is amplified both in volume and in signal-to-noise ratio. In larger spaces, the regulations state that a permanent assistive listening system must be installed. The guidance also explains the types of technologies available and where they should be used. The UK’s most detailed guidance is found in BS 8300, the Building Code of Practice revised in 2018. Developed by the British Standards Institution (BSI), this document sets out how buildings should be designed to meet the needs of disabled people. It includes extensive examples and detailed recommendations on integrating assistive listening systems, such as hearing loops, to support equal access in public and commercial environments.

Hearing aid loop provision for home

If you are planning to purchase a hearing loop system, suppliers will usually guide you toward the model best suited to the size and layout of the room where it will be used. There are many types available at different price points, so your specific needs will determine the most suitable option and overall cost. It is important to let the supplier know which audio sources you intend to connect, so they can ensure the system includes the correct inputs and compatible connections. In some parts of the UK, hearing loops may be offered free of charge or at a reduced cost through Social Services or local Sensory Impairment Teams. An assessment may be required before you can receive support through these services. If you are unsure about what assistance is available in your area, speak to your audiologist — they are often familiar with local provision and may even be able to make a referral on your behalf.

NHS hearing aid loop system for TV and everyday life

Many NHS hearing aids include, or can be programmed with, a “loop” or telecoil (T-coil) setting. This allows users to connect directly to an induction loop system, improving clarity when watching TV, using the telephone or listening in public places. When the loop programme is activated, the hearing aid receives sound through the telecoil rather than its microphones. This bypasses background noise and echo, giving clearer, more focused sound. At home, a loop system can be connected to a television, landline phone or installed within a room. When watching TV, switching the hearing aid to the “T” programme allows the audio to be transmitted directly into the ear, making dialogue easier to follow and reducing the need for high TV volume. Because the loop bypasses the microphones, users hear only the TV signal unless their device supports an MT (microphone + telecoil) setting. NHS audiology departments confirm that all NHS-issued hearing aids can have the telecoil/loop programme activated, although it may not always be enabled by default. The NHS commonly fits Behind-the-Ear (BTE) and Receiver-in-the-Ear (RITE/mini-BTE) models. Examples of telecoil-compatible NHS models include the Signia Stretta M-T (for mild to medium hearing loss) and the Signia Stretta HP-T (high-power option), both of which support loop functionality. Users should ask their audiologist to confirm whether the T-coil is activated and whether a home TV loop system is suitable for their needs.

Induction loop for hearing aids: models featuring it

Many modern hearing aids include a built-in telecoil (T-coil) which allows wearers to benefit from a venue’s induction loop system. An induction loop works by transmitting sound as a magnetic signal. A microphone or audio source feeds sound into an amplifier, which sends an electric current through a loop of wire installed around the room. This creates a magnetic field that can be picked up directly by the telecoil inside a hearing aid. When the hearing aid is switched to the T-setting, the telecoil converts this magnetic signal back into sound, reducing background noise and improving speech clarity.

  • Oticon Intent: According to the manufacturer, this device “is a discreet, rechargeable hearing aid with telecoil and a single, easy-to-use push button control.”
  • Signia Motion Charge&Go X: Product literature indicates it offers “Li-ion rechargeability and telecoil” in compatible models.
  • Phonak Audeo Lumity: The manufacturer’s specifications state that one of the model variants “L-RT … includes a telecoil, for everyone who wants greater auditory access in public spaces equipped with loop systems.”

Across the industry, telecoil availability varies by model, performance level and style. Receiver-in-Canal (RIC) and Behind-the-Ear (BTE) models most commonly include telecoils, while ultra-small rechargeable devices may omit them due to size constraints.

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Portable hearing aid loop system: pros and cons

A portable hearing-aid loop system is a mobile version of an induction (audio-frequency) loop that allows a user, or a venue, to set up assistive listening support without permanently wiring a room. It typically comprises a loop amplifier, a coil of wire or pre-formed loop cable, and sometimes a microphone or audio input.

How it works

The audio input, such as a speaker’s voice or a sound system, feeds into the loop amplifier, which drives an electrical current through the loop cable. This generates a magnetic field in the looped zone. A hearing aid or cochlear-implant processor with a telecoil (T-coil) picks up that magnetic signal, converts it back into audio, and delivers it to the user’s ear. Because the signal bypasses ambient acoustic pathways, background noise and reverberation are greatly reduced.

Pros

  • Highly flexible and portable, making it ideal for temporary venues, mobile outreach or changing locations.
  • Typically lower upfront cost and simpler installation compared with a fixed system.

Cons

  • Performance is more variable: placement, power or battery status and correct orientation matter significantly; if set-up is poor, users may experience reduced benefit.
  • In larger or acoustically complex spaces, portable loops may struggle to provide an even, strong magnetic field and may suffer overspill or interference.
  • Because they are not permanently installed, the system depends on staff or users to deploy and maintain it correctly; if overlooked, accessibility may be lost.
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Hearing aid loop systems: benefits

Hearing-aid loop systems (also known as induction loops) offer significant benefits for individuals with hearing loss.

  • By transmitting audio directly to a hearing aid’s telecoil (“T-coil”) setting, the system cuts out ambient background noise and room reverberation, improving the signal-to-noise ratio and delivering clearer speech and music.
  • They allow users to bypass headphones or separate receivers, enabling a more natural and discreet listening experience.
  • Moreover, the provision of loop systems helps venues meet accessibility and equality obligations, signalling inclusive customer-service practices.
  • These systems are suitable in a wide variety of locations. For example, they work well at service counters, ticketing desks, reception areas and checkout points in retail or public-service environments.
  • In larger-scale settings they are useful in theatres, cinemas, lecture halls, places of worship, conference rooms and transport hubs such as airports and stations, where speech intelligibility is challenging.
  • Even private homes, meeting rooms and vehicles can be equipped with loop systems to improve access for hearing-aid users.
  • In summary, hearing-aid loop systems enhance clarity of sound for hearing-aid wearers, support inclusive access, and are applicable in both everyday and specialised environments.
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What are the disadvantages of hearing loops?

While hearing-loop systems (induction loops) offer valuable benefits, there are several limitations and potential drawbacks to bear in mind.

  • One key disadvantage is that loop systems are optimised for speech but not always for music: many telecoils and loop installations have limited bandwidth, which means that music may sound distorted or less full than through standard audio amplification.
  • Another issue is orientation sensitivity: a hearing aid’s telecoil needs to be positioned properly relative to the loop’s magnetic field for optimal reception; if the user is outside the loop zone or poorly aligned, signal strength drops significantly. 
  • Installation-related challenges are also common. Loop systems require correct design, wiring, grounding and avoidance of electromagnetic interference — errors in installation, such as poor loop geometry or interference from metal structures, can degrade performance or cause buzzing, hum or dead spots. 
  • Additionally, the systems are location-bound: once a loop is installed in a fixed space, users must remain within the designated zone to receive benefit; moving out of the loop area results in a loss of signal. 
  • Finally, awareness and activation are issues: venues may fail to maintain the loop system properly, staff may not know how to switch it on, or signage may be inadequate — all of which lead to under-use and frustration among hearing-aid users.
  • In short: hearing loops are powerful accessibility tools, but they rely on proper installation, consistent use, suitable audio content and venue commitment.

Neck loop hearing aid: how to use it and how it works

A neck loop is a wearable assistive-listening accessory designed for users of hearing aids or cochlear implants equipped with a telecoil (“T-coil”) function.

  • How it works: The neck loop is a loop of wire worn around the neck and connected (via a 3.5 mm jack or other audio output) to an audio source such as a TV, smartphone, or microphone system. The audio signal is converted into a low-level magnetic field by the loop; the telecoil in the hearing aid picks up this magnetic signal, bypassing much of the ambient noise and delivering a clearer direct input to the ear.
  • Uses: Neck loops are particularly useful in situations where background noise, distance from the speaker, or poor acoustics make it difficult for the hearing-aid user to understand speech. Examples include watching television, attending lectures, connecting to smartphones or tablets or other multimedia devices, or using assistive listening systems in public places.
  • In short: if your hearing device has a “T” setting and you plug a loop around your neck, you can stream sound more cleanly into your hearing aid, improving clarity and reducing the interference of background noise.

Hearing aid loop system for TV: things to know

A TV hearing-aid loop system uses an induction loop attached to the television or audio source to transmit sound via a magnetic field directly into hearing aids or cochlear implants with a telecoil (“T-coil”) setting.

  • When installed at home, the loop connects to the TV’s audio output and creates a “looped zone” around the viewing area, allowing sound to be picked up by the telecoil inside your hearing device.
  • Key benefits include improved clarity of dialogue and reduction of background noise or room echo, since the signal bypasses the usual microphone-in-hearing-aid path.
  • To use it, you must have a hearing aid or implant with a telecoil programmed and a “T” or “MT” setting enabled. Before purchasing or installing a home loop system for your TV, check: whether your hearing device supports telecoil, whether the loop amplifier has the correct audio input (for example optical, coaxial, or analogue), and whether the loop covers the desired space without interference.
  • In short, a TV loop system is a practical and effective way for hearing-aid users to receive television sound directly and clearly, provided the device is properly set up and compatible.

What to look for in a hearing aid loop system

When selecting a home induction loop system, consider:

  • Telecoil compatibility: Ensure your hearing aid supports the telecoil (“T”) setting and that it is activated.
  • Audio input options: Check that the loop amplifier supports the outputs your TV or audio system uses, such as analogue line out, optical digital, or coaxial. Some systems include built-in digital audio converters for modern TVs.
  • Loop area coverage: Confirm that the loop cable and amplifier are suitable for the room size so the magnetic field is strong and consistent.
  • Adjustable controls: Look for volume and tone settings, automatic gain control (AGC) to reduce distortion, and remote-control options for ease of use.
  • Installation simplicity and aesthetics: Many home kits use thin loop wire that can be fitted around skirting boards or under carpet edges for discreet installation.
  • Compatibility and maintenance: Choose systems that are reliable, easy to maintain, and meet relevant UK standards where applicable.

Hearing aid loop amplifiers: things to know

A loop amplifier is the key component in a hearing-aid induction loop system: it takes the audio input (such as from a microphone, TV, or sound system), amplifies it and drives a loop of wire so that a magnetic field is generated which can be picked up by the telecoil (T-coil) in a hearing aid. The signal source connects to the amplifier, and instead of feeding speakers, the amplifier sends current around the loop cable. That loop cable layout around the room or counter then radiates the magnetic field which hearing aids with a T-setting can detect. What you should check before selecting a loop amplifier: ensure it has the correct audio inputs (line-level, microphone, TV output) and can drive the loop length or layout required for the space. Also check that the amplifier maintains a constant current output to produce a stable magnetic field and comply with relevant standards for field strength and frequency response. Additionally, bear in mind that loop systems can “bleed” magnetic field outside the intended area (overspill) or have “dead spots” above or below the loop cable, so correct design of the loop and amplifier settings are important for optimal performance.

Hearing aid loop setting: details and information

The “T” (or “Loop”) setting on a hearing aid activates the built-in telecoil (also called T-coil), which picks up a magnetic signal from an induction loop system rather than relying only on the hearing-aid microphones. When you switch to the T setting, the hearing aid’s microphone is usually turned off (or reduced) so you hear mainly the loop signal — this reduces background noise and improves clarity.

  • Users select the T setting in locations equipped with a loop system: counter loops in banks, ticket offices, auditoria, or room loops for TVs and home listening. A standard loop system consists of a microphone or audio source, an amplifier, and a cable loop that creates a magnetic field which the telecoil picks up.
  • Make sure your hearing aid actually has a telecoil and that the T programme is activated: not all devices have it by default.
  • In short: switching to the T or Loop setting allows you to receive audio directly and cleanly through the loop system, avoiding many of the difficulties posed by ambient noise, distance, or poor acoustics.
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Hearing aid loops for church and public buildings: things to know

In spaces like a church or busy community hall, installing a hearing-assistive induction loop automatically increases speech clarity for those with hearing aids set to “T” or “MT”. A loop system uses a wire, driven by an amplifier, around or within the room to generate a magnetic field, which is picked up by the telecoil (T-coil) in the hearing aid.

  • For noisy places, the benefits are significant: hearing loops improve the signal-to-noise ratio by delivering the desired audio (such as sermon, speech, or music) directly to the hearing device, bypassing many of the room acoustics and ambient noise.
  • When designing or installing a loop in a large or reverberant space like a church, key factors include loop layout (perimeter vs. phased-array), dealing with metal and concrete structures that attenuate the field, avoiding dead spots and overspill into adjacent areas, and ensuring compliance with standards such as IEC 60118-4 or relevant national codes.
  • For venue operators, it is also crucial to provide signage indicating the loop is available, ensure the hearing-aid user knows to switch to “T” mode, and maintain the system — for example, through annual checks — to preserve effectiveness and accessibility.
  • Hearing-aid loops in public buildings such as theatres, community centres, council offices, and transport hubs further improve accessibility, allowing people with hearing loss to participate fully and receive clear audio in essential everyday environments.
  • In summary, loop systems are a powerful accessibility tool in churches, public buildings, and noisy spaces when correctly installed, maintained, and used, enabling hearing-aid users to participate fully in services and events.
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Bluetooth hearing aid loop for iPods and other devices

  • A Bluetooth neck loop functions as a wearable accessory that lets users stream audio wirelessly from devices such as an iPod, smartphone, tablet or computer into a hearing aid that supports the telecoil (“T-coil”) setting. One example device is the Neck Loop Streamer Pro, used with hearing aids via the T-loop programme. Another is a dedicated model described in specialist sources that connects via Bluetooth and then emits a magnetic field for the T-coil in the hearing aid to pick up.
  • How it works: The user pairs the neck loop with their audio source over Bluetooth. The device receives the audio wirelessly and then generates a magnetic field around the wearer’s neck or head region. The hearing aid, switched to its “T” setting, detects this magnetic signal and converts it into sound, bypassing the hearing aid’s microphone and significantly reducing ambient noise and interference. This provides clearer audio streaming for music, calls or media from devices like an iPod.
  • Bluetooth-enabled neck loops are particularly useful when a hearing aid does not have direct streaming compatibility, or when an easy way is needed to connect to older audio sources. Users should ensure their hearing aid supports a dedicated T programme and confirm that the neck loop device is compatible with their audio source and hearing aid system. Many hearing aids now offer Bluetooth connectivity and loop compatibility, but the setup may vary by manufacturer.
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Home hearing loop system: things to know

A home induction loop system converts audio from sources such as a TV, radio or Hi-Fi into a magnetic signal that is detected by the telecoil (“T-coil”) inside a hearing aid. Because the hearing aid receives the magnetic field directly, it bypasses room acoustics, background noise and distance from the speaker, delivering clearer sound for the wearer.

Installation is relatively simple: a loop of wire or cable is placed around the perimeter of the room (or under the skirting) and connected to an amplifier, which is then linked to the audio source. Before installing, you should check that your hearing aid includes a telecoil and that the “T” programme is activated, as not all devices have this enabled by default. You should also verify that the loop system supports the audio inputs you need—such as analogue, optical or coaxial—and that it adequately covers the area in which you plan to use it.

In summary, a home loop system is a practical assistive-listening solution that helps hearing-aid users enjoy media and conversation with greater clarity. Performance is best when the system matches the hearing aid’s capabilities, is correctly installed and is appropriately sized for the room.

Wired vs wireless hearing loop system

A wired hearing loop system (also known as an induction loop) uses a loop of copper cable installed around a room or area.

  • An amplifier drives a current through this loop, creating a magnetic field which is picked up by the telecoil (“T-coil”) in a hearing aid or cochlear implant. Because the loop wire is physically installed and the signal is direct, the system offers very low latency and consistent performance.
  • Wireless hearing loop-type systems typically use wireless transmission (for example via FM, IR, WiFi, or Bluetooth) to send audio to either a neck loop or a receiver, or sometimes directly to hearing aids. They offer greater flexibility — for example for mobile users, outdoor areas, or multiple audio streams — but may introduce latency, require extra receivers or accessories, and depend on user devices or infrastructure.
  • For a hearing-aid user with a T-coil, a wired hearing-aid wire loop (the actual cable loop around the room) provides a “transparent” solution: simply switch the hearing aid to “T” and you receive the magnetic field, with no extra receiver needed. By contrast, wireless systems may require compatible receivers or apps and may not deliver as universal or reliable a magnetic field signal.
  • In summary: if the priority is reliability, ease of use for the hearing-aid wearer, and direct signal to the T-coil, a wired loop system is ideal. If flexibility, mobility, or multiple audio streams are needed, a wireless solution may be appropriate — but with trade-offs such as extra equipment and potentially less seamless integration.

Hearing aid loops for phones and mobiles

Many people who use hearing aids can benefit from hearing-aid loops for phones and mobile devices, which enhance call clarity and reduce background noise. A key part of this technology is the telecoil (T-coil) built into many hearing aids. This small internal coil receives magnetic signals from compatible phones or induction loop accessories and converts them into sound within the hearing aid.

Mobile phones and smartphones may carry ratings that indicate how compatible they are with hearing aids: an “M” rating for microphone mode and a “T” rating for telecoil mode. These ratings help users understand how well a phone will perform when the hearing aid is switched to its loop or “T-coil” setting.

To use a mobile phone with a hearing-aid loop, you should:

  • Ensure your hearing aid is set to the “T” or Loop programme (an audiologist can activate this if needed).
  • Choose a phone or device with a strong “T” rating.
  • Use optional accessories such as a neck loop or inductive hook, which connect to the phone—via cable or Bluetooth—and transmit audio magnetically to the hearing aid’s telecoil.

This setup streams voice calls and media directly into the hearing aid, bypassing background noise and improving clarity. Because the signal is delivered magnetically, it often provides far clearer sound than relying on the hearing aid microphone alone.

Hearing aid induction loop test and maintenance

We recommend that you maintain your hearing loop system at least every 12 months to ensure optimal performance. Industry guidance states that a full inspection and test should be carried out annually by a qualified professional using calibrated equipment. During the maintenance visit, your provider will use a hearing-aid induction loop tester or an equivalent measurement instrument to conduct both subjective and objective assessments. These typically include checking the amplifier status, loop wire integrity, signage visibility, signal-to-noise ratio, field strength and frequency response across the coverage area. Regular maintenance helps identify wear and tear, degraded performance, interference issues or changes in the building layout that may affect loop performance. It also enables you to issue a certificate of conformity and confirm that your system meets recognised standards for assistive listening, such as IEC 60118-4. By scheduling an annual check, you ensure that your hearing loop remains reliable for users of hearing aids or implants and continues to provide high-quality, accessible sound. Neglecting maintenance can result in reduced performance, user complaints or non-compliance with accessibility requirements. If you would like, I can also create a practical maintenance checklist to help you perform basic checks between professional inspections.

Hearing aid loop signs to recognize

When you are in a public place and need to check whether a hearing loop (also known as a loop for hearing aids) is available, look for the internationally recognised symbol. The standard sign features an ear outline with the letter “T” inside a blue rectangle, indicating that the venue has a telecoil-compatible induction loop system. This symbol tells you that a hearing aid set to the “T” or Loop programme should be able to receive the audio signal directly from the loop. Industry signage guidelines explain that the “ear with a line” design — or ear plus “T” — is used to show the presence of a hearing loop or other assistive listening device. You will often see these signs at entrances or service counters in locations such as banks, theatres, reception desks, train stations and places of worship. They may also appear near help points, meeting rooms or information desks. When you see the symbol, it indicates that you should switch your hearing aid to the “T” setting so it can pick up the loop’s magnetic signal. This allows you to bypass programmes that rely on ambient sound, since the loop will deliver audio directly. If you notice a similar symbol without the “T”, ask staff whether the system is an induction loop or another type of assistive listening technology.

How to connect a hearing aid to a loop system

To connect your hearing aid to a loop system, follow these steps for the best results.

  • First, make sure your hearing aid has a telecoil (T-coil) programme and that it is activated—your audiologist can confirm this and enable the correct setting.
  • Next, when you enter a venue with a loop system, look for the recognised blue “ear with T” sign. This indicates the loop is active and you can switch your hearing aid to the “T” or “Loop” programme.
  • Once your aid is on the “T” setting, select a seat within the loop coverage zone—typically nearer the centre rather than the edges—to ensure optimal reception of the magnetic field. Then quietly listen and adjust the volume if your device allows it.
  • If you can’t hear anything, check with staff whether the loop is switched on, and ask if your hearing aid’s telecoil has been activated by your audiologist. Sometimes the system may need positioning adjustments or may not cover the entire area fully.
  • By ensuring your hearing aid is correctly programmed and selecting an appropriate seating position, you’ll benefit from direct, clearer audio through the loop system.

How does a hearing aid loop system work?

A hearing aid loop system — also called an induction loop or hearing loop — works by sending sound directly into a hearing aid using magnetic signals rather than relying on the device’s microphone. Here’s how it works step-by-step:

  1. Sound is picked up - A microphone or audio source (such as a speaker, TV system or announcement system) captures the sound in the room.
  2. The audio is sent to a loop amplifier - This amplifier processes the sound and prepares it to be transmitted as an electromagnetic signal.
  3. A loop cable creates a magnetic field - The amplifier sends the processed signal through a loop of wire installed around the room, at a counter, or inside a portable device. This loop of wire generates a magnetic field that changes in sync with the sound.
  4. The hearing aid receives the signal - When the user switches their hearing aid or cochlear implant processor to the “T” (telecoil) or Loop setting, the telecoil inside the device picks up the magnetic field.
  5. The signal is converted back into sound - The hearing aid converts the magnetic signal into clear audio and plays it directly into the ear — bypassing background noise and reverberation in the room.

Why it’s effective: Because the telecoil receives the audio directly from the source, users hear clearer speech with less interference, making hearing loops one of the most reliable and accessible assistive listening technologies available.

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Hearing aid loop transmitters: things to know

A loop transmitter (or loop amplifier) forms a crucial part of a hearing loop system. The audio input, such as a microphone or sound source, feeds into the transmitter, which then drives current through a loop cable to create a magnetic field in the listening area. When choosing or installing a loop transmitter, there are several important factors:

Coverage and field strength

The transmitter must generate a magnetic field that is strong enough and evenly distributed across the loop zone, ensuring that a telecoil-equipped hearing aid can reliably pick up the signal.

Inputs and compatibility

It is important to check that the transmitter provides the correct audio inputs for your sources—such as microphones, PA systems or media players—and that it is compatible with your building’s wiring, grounding and electromagnetic environment.

Installation and interference

The layout of the loop cable, grounding, avoidance of metal structures and the correct amplifier settings all affect overall performance. Poor installation can result in dead zones, interference or reduced clarity.

Maintenance and testing

The transmitter should be tested regularly to confirm that the magnetic field meets required standards and that the system remains compliant and effective.

In short, the loop transmitter is the heart of a hearing loop system. Selecting the right model, installing it properly and maintaining it regularly are essential for delivering clear, direct sound to hearing-aid users via the telecoil setting.

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Hearing aid loop apps: things to know

Hearing aid loop apps are digital tools designed to help users interact more easily with hearing loops or understand when loop systems are available. While a hearing loop itself uses a magnetic signal (picked up by the telecoil inside the hearing aid), apps can support the user experience in several useful ways.

Apps Don’t Replace the Telecoil

  • A hearing loop operates using electromagnetic induction — something a phone cannot replicate.
  • This means apps cannot act as a hearing loop transmitter and cannot replace the T-coil inside a hearing aid. They support the loop, but they do not provide the loop signal.

Apps Can Help You Locate Hearing Loops

Certain accessibility apps include maps or directories showing where public loop systems are installed (e.g., theatres, train stations, banks, places of worship). They help users plan visits and find accessible venues more easily.

Apps Can Assist With Device Settings

Some hearing-aid manufacturer apps allow you to:

  • switch between programmes more easily
  • activate the T-coil setting (if supported by your model)
  • adjust volume or background noise
  • check battery status or connection status

This can make using loop systems more convenient.

Apps Can Provide Remote Microphone or Streaming

While not loops, many apps offer remote microphone features or Bluetooth audio streaming for hearing aids that support it. This is useful in places without a loop system.

Useful for Troubleshooting

Apps can help you:

  • confirm whether the T-coil is enabled
  • test whether the hearing aid is picking up a magnetic signal
  • adjust sensitivity or audio settings if the sound seems unclear

Hearing aid loop apps are support tools: They help users find loops, manage their hearing aid settings and troubleshoot issues, but they do not replace the physical loop system or the telecoil. They are most effective when used alongside a properly installed hearing loop.

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Phonak hearing aid loop setting

Many Phonak hearing aids offer a telecoil (T-coil) programme that allows users to connect directly to a hearing loop system. When activated, the hearing aid receives sound through magnetic induction instead of the microphone, giving clearer speech in places like theatres, banks, churches, reception areas and ticket counters.

Does your Phonak hearing aid have a telecoil?

Phonak models that often include a telecoil option include:

Note: Not every Phonak model includes a T-coil — especially smaller RIC or rechargeable models. Your audiologist can confirm if yours has one.

How to activate the T-coil on Phonak hearing aids

1. Through your hearing aid button

If your audiologist programmed a loop setting, you can switch to it by:

  • pressing the programme/rocker button
  • cycling through programmes until you reach “T” or “MT”
  • T: telecoil only
  • MT: telecoil + microphone

2. Through the myPhonak app

Some models allow programme switching in the app:

  • Open myPhonak
  • Go to Programmes
  • Select Loop / Telecoil (if programmed)

3. Programme must be enabled by your audiologist

Phonak does not automatically activate the telecoil setting. Your audiologist must:

  • turn on the telecoil
  • add T or MT to your programme list
  • set sensitivity and volume levels

How it works in a loop-enabled venue

  • Look for the hearing loop symbol (ear + “T”)
  • Switch your Phonak hearing aid to T
  • The aid picks up the magnetic signal directly
  • Background noise is greatly reduced and speech clarity improves

**Part of the body text images are are AI generated.

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