Macworld
With the iOS 18.1 release (and a corresponding AirPods firmware update), you can use your AirPods Pro 2 to take a “clinical-grade” hearing test, and then optionally use them as over-the-counter hearing aids or just adjust media playback to match your hearing loss.
It’s a fantastic new feature that we recommend everyone make use of. Hearing loss is far more common than most people realize, and even if you don’t suffer significant loss of hearing or don’t want to use your AirPods 2 as hearing aids.