Comment by Daniel_sk

The issue is that you have tiny chemical batteries inside and they deteriorate with use and time, so it will hardly hold any charge after 3 years (some report much faster deterioration). Does Apple replace those batteries? How much does it cost? And can it be done outside of US? (e.g. in EU countries with no official Apple Store presence). Otherwise it's pretty expensive to pay $200 for a pair headphones and throw them away after 3 years.