One of the more interesting developments of AirPods Pro 3–one the rumor mill didn’t seem to know about–is that it uses new “foam-infused” eartips. But don’t go buy AirPods Pro 3 tips from the Apple Store, or borrow the unused tips from a friend’s set. If you check the page for AirPods Pro 3 tips on the Apple Store, you’ll see Apple lists only compatibility with AirPods Pro 3. AirPods Pro 2 tips are only for AirPods Pro 2. The AirPods Pro 3 tips have a deeper inset before the mesh cover, while the AirPods Pro 2 eartips are quite shallow.