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Bluetooth hearing aids explained: what streaming actually means

Bluetooth is one of the most talked-about hearing aid features, and one of the least understood. Here's what it actually gets you.

By Asa Richards, Hearing Aid Dispenser (HAD, MSHAA)·Published 15 September 2026·Updated 24 September 2026

Bluetooth hearing aids connect wirelessly to your phone, television or tablet, so calls, music and TV sound play directly through your hearing aids. Most models also work with a phone app for adjusting volume and settings. Bluetooth does not change how well you hear a face-to-face conversation. That depends on the hearing aid and how well it is fitted.

What can Bluetooth hearing aids connect to?

Most current models connect directly to a smartphone. Many work with both iPhones and Android phones, though Android support varies by phone and by manufacturer, so it is worth checking your own model.

For television, most manufacturers offer a small TV streamer that plugs into your set. The sound goes straight to your hearing aids at a volume that suits you, while everyone else in the room hears the TV at theirs. Tablets and some laptops can connect too.

How do phone calls work?

When a call comes in, the sound plays through both hearing aids at once, rather than you holding the phone to one ear. On many models you can also talk hands-free, with the hearing aid microphones picking up your voice. People who find the phone difficult often notice the biggest change here.

What does the hearing aid app do?

The app turns your phone into a remote control. You can change the volume, switch between programmes for quiet rooms, busy restaurants or outdoors, and check battery levels. Some apps let you fine-tune settings between appointments or help find a hearing aid you’ve misplaced.

You don’t have to use the app. The hearing aids adjust themselves automatically, and plenty of people rarely open it.

What doesn’t Bluetooth do?

It doesn’t make conversation in person clearer. That comes down to the hearing aid’s microphones, its processing and how well it has been fitted to your hearing test. A hearing aid without Bluetooth, fitted well, can outperform one with every feature, fitted badly.

Some hearing aids also work with a small remote microphone that a speaker wears or places on a table. That can help in face-to-face conversation in noise, and it is a different feature from phone streaming.

It also isn’t available on every style. Receiver-in-canal and behind-the-ear models usually have it. The smallest in-canal styles rarely do, because there isn’t room.

Does streaming affect battery life?

Yes. Streaming uses more power than normal listening, and the difference varies between manufacturers and models. Most Bluetooth hearing aids are now rechargeable, charged overnight in a small case. We can talk you through realistic battery life for the models we fit, based on how much you’re likely to stream.

Is Bluetooth worth it for me?

If you’re often on the phone, watch a lot of television or like to adjust things yourself, it is a useful feature. If you mainly want clearer conversation at home and out, it is a nice extra rather than the deciding factor. We’re not tied to one manufacturer, so what we recommend is only ever about you.

This article is general information, not a diagnosis. If you are worried about your ears or hearing, speak to a qualified clinician or your GP.

Related reading: What to expect at your first hearing test · Ear wax build-up: when to get it checked

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