I had some skull candy wireless earphones and the battery seems to last longer than those. I was listening to Joe Rogan Joey Diaz youtube podcast, this went for 3 hours and they lasted that long. Maybe music uses more battery. Only annoying thing and this seems to be for all Bluetooth earphones, you can't use them while charging.
These headphones have many problems. The clunky button module on the right side makes wearing them uncomfortable. They feel very cheap and the build quality is poor. The sound quality is not the best at all. I do not recommend these headphones. If you can afford to get some thing better, do it.
Sound Quality Good. Cannot comment on phone conversation via mic, but not heard anyone I have called complain about static etc. Biggest letdown is Battery staying power shocking 30-40mins solid play before a recharge is necessary.