CNBC:

Apple’s AirPods may be one of the hottest iPhone accessories you can buy right now, but they aren’t just made for listening to music. You can activate a feature called “Live Listen,” which lets you use AirPods to amplify sound, allowing them to double as basic hearing aids.

The AirPods Live Listen feature uses the microphone on your iPhone and then pipes the audio right into your AirPods. So, if you’re hard of hearing, instead of asking someone to speak up or sitting out of a conversation entirely, you can put your iPhone on a table — or even hold it close to someone’s mouth — and the AirPods will amplify what’s being said.

I don’t have AirPods and didn’t know about this feature. Sounds interesting.