I didn't really use them for voice calls myself. I readily admit that I might just have been extremely unlucky, I don't know. I really didn't like having to th

I didn't really use them for voice calls myself. I readily admit that I might just have been extremely unlucky, I don't know. I really didn't like having to throw headphones away just because they simply wouldn't turn on anymore so I'm just very wary of spending money on these headphones right now, especially since Sony WM-1000s are hovering at a similar price point and my experience with those has been very positive: almost 3 years in now and the pair of mk2s I have works perfectly. If the battery was replaceable, even by professionals, I'd be far more likely to consider getting a new pair just because I miss them... and really, It's kind of a shame because the form factor and general operation of AirPods is really lovely, in my opinion. I was at first ready to be disappointed because they looked very similar to the wired ones Apple used to include with their devices which were awful, but I was very positively surprised.