If you fail in your first attempt to get the perfect fit, you should try other ear tip sizes to get it right. You cannot enjoy the best of AirPods Pro unless they are comfortably snug in your ears. So here is how to remove and attach the different ear tips.  1. Use your fingers to pull the tip of the ear tip stoutly til it comes off. 2. Now attach the other size ear tip by placing it on the oval-sized connector. 3. Push the connector by placing your fingers at the base of the ear tip. You will hear a clicking sound when it sets in firmly.  4. You will have to try all three sizes to know which one is the best fit for you.