Apple's AirPods Pro 2 now have a “hearing aid feature”: a hearing test and the ability to amplify sound for mild or moderate hearing loss, with a free software update.

For now, the hearing aid feature is only available with the AirPods Pro 2 model. Users will need an iPhone or iPad to set it up. The feature setup starts with built-in hearing loss tests to determine whether or not users have hearing loss. If they do, they can then set up their own customized amplification levels.

Now that iOS 18.1 is available to the masses, Apple’s new hearing aid feature is ready for use. The tool is one of three hearing health items the company announced alongside the iPhone 16 in September.