https://wccftech.com/future-airpods-detect-users-wearing-them-properly/

Where technology has allowed the transition of bulky headphones to miniature earbuds, there’s always something that a company like Apple would be looking to improve. For example, with the AirPods Pro, the company introduced silicone replaceable eartips, something that wasn’t present in the first and second-generation AirPods.

This ensures that these wireless earphones will form a tight fit in your ear, balancing pressure levels that allow you to experience the best audio quality possible. However, whether or not you might care, Apple has also figured out a way for these AirPods to detect if they’ve been positioned in your ear correctly.