I've been using an Avantree pair for several months. Sound quality is okay, better than most earbuds I've tried but nothing compared to a high end wired home pair. Ambient noise gets through well enough for jogging and cycling...not so much for carrying on a conversation, but I can always hear cars behind me and usually bicycles too. Batteries last several hours, guessing 7ish...I usually charge them once a week, twice if short-charging.