Specifications:
Battery--3.7V 280mAh LI-Pol
Speaker---3Ω/1W
Talking time ---UP to 6 hours
Standby time ---UP to 200 hours
Charging time --Less than 2 hours
Charging voltage--5V DC(USB)
Frequency Range---2402Mhz-2480Mhz
Operation tempreture--10-50℃
Storage tempreture--20-70℃
Bluetooth version--BT2.1+EDR
Supported profile--HSP,HFP