A:AnswerYou can replace any part of it from just battery the case to one ear bud. Also I had my last pair for well over 2-3 years and used them no less then 5 days a week and didn’t need a new battery. I only replaced the one I had because it got run over and I wanted the wireless charging case.
A:AnswerYes! And you can even connect them to multiple apple products like a Mac book. I can use them on my MacBook for YouTube and if I get a call on my phone the AirPods automatically connect and I can answer using my AirPods