Sports with music, Healthier with you, BT 5.0, Low consumption and Wide compability - Convenient magneticattachment - Independent sound cavity high resolution sound field - Dual batteries design 200hours standby time Device name : Baseus Encok S17 Material : ABS + Silicon Color : Black Version : 5.0 Communication distance : 10M Standby timr : 200hours Call time : 6hours Music time : 7hours Battery capacity : 100mAh/3.7V Chargin time : 1.5hours Frequency response range : 20Hz-20KHz SUitable for : All wireless devices Accessories : Earhook *2pcs, Charging cable*1pcs, User manual *1