Adjust the volume of sound effects for AirPods
You can adjust the volume of sound effects played by your AirPods, such as when you put them in your ears, press and hold the Touch control on AirPods Pro 2 or AirPods Pro 3, or receive low battery alerts.
Wear your AirPods, and make sure they’re connected to your device.
Do one of the following:
iPhone or iPad: Go to the Settings app
, then tap Accessibility. Tap AirPods, then select your AirPods.Mac: Go to the System Settings app
, then click Accessibility 
in the sidebar. Click Audio, then select your AirPods.Apple Watch: Go to the Settings app
, then tap Accessibility. Tap AirPods, then select your AirPods.Apple TV: Go to the Settings app
, then select Accessibility. Select AirPods, then select your AirPods.
Adjust Tone Volume.
You can also change the accessibility settings for your AirPods to suit your hearing needs. See Set headphone accommodations.