>>107162510 (OP)
>Why aren't there more headphones with user replaceble batteries on the market?
Cause the average retard buys crap with build-in batteries that requires charging every couple of hours on a USB plug which we all know has a 50% chance failing as quickly as the ABS plastic hinge on your 200-300$ piece of shit.
If you want better quality headphones, you need to do eugenics and genocide retards who buy garbage. Cause that's 99% of the market and the 1% left isn't worth catering to.