Take an ear tip fit test
To make sure you get the ideal listening experience, you can take a quick ear tip fit test on your iPhone. This will tell you if you’re wearing the right ear tip size. If not, you can replace them with another size in the box.
Head to Settings > Bluetooth and look for your AirPods on the list. Tap the info icon next to their name and hit Ear Tip Fit Test. Click Continue to start the test.
Your iPhone will play some music, take a few seconds, and let you know if the size you’re wearing is right for you.
