Talk time 5 hours listen time 45 hours charge case enables up to 145 hours listen time standby time up to 10 days charge time 25 hours power requirements 5v dc 180ma bluetooth version 21 bluetooth profiles supported a2dp avrcp hfp hsp range up to 33 feet from device cable length 25 inches from earbud to earbud weight 14 grams p2i military grade nano coating protects against sweat and moisture high quality sbc codec 6mm neodymium speakers frequency response 20 20 000 h