Hearing Devices And Hearing Aid Compatibility on iPhone: How It Works

Pair MFi hearing aids and route call audio straight to them. This page explains what it does, how to use it on an iPhone and which carriers it applies to.

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What is Hearing Devices And Hearing Aid Compatibility?

Settings, Accessibility, Hearing Devices is where Made for iPhone hearing aids and sound processors are paired and controlled. Turn Bluetooth on first, open that screen, then power your hearing devices off and back on so they appear under MFi Hearing Devices. Pairing can take up to sixty seconds.

Once paired you can choose whether phone and media audio route to the hearing device, whether ringtones play through it, and adjust ambient microphone volume. Turning on Control on Lock Screen puts those controls where you can reach them during a call.

The separate Hearing Aid Compatibility switch on the same screen changes how the iPhone drives its audio hardware to reduce interference with some hearing aid models. It is worth trying if you get buzzing on calls.

How do I do it?

1. Open the Settings app, tap Bluetooth and make sure it is on.
2. Tap Accessibility, then tap Hearing Devices.
3. Turn your hearing devices off and back on, then tap their name under MFi Hearing Devices and accept the pairing prompts.
4. Turn on Hearing Aid Compatibility on the same screen if you get interference on calls.

Which carriers does this apply to?

Published for	any iPhone
Type	iOS setting
Good to know	Available on iOS 17, 18 and 26. MFi pairing needs a hearing device on Apple's compatible list. Hearing Aid Compatibility helps with some hearing aid models, not all.

Related iphone phone and message settings

• Flash For Alerts
• Live Captions On Calls
• Allow Cellular Data Switching
• Background Sounds
• Allow More Data On 5G
• Sound Recognition

See all iphone phone and message settings or every category of iPhone codes.

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