https://www.cnet.com/news/with-apple-ios-12-and-airpods-you-can-turn-your-iphone-into-a-remote-mic-like-made-for-iphone-hearing-aids/

Apple's AirPods are about to get a feature that helps you hear better. 

The next version of Apple's mobile operating system, iOS 12, will include the capability to turn your iPhone into a directional microphone. The feature, called Live Listen, has been offered in Made for iPhone hearing aids for years and has let people with hearing problems better pick up conversations being held around them.