Specification:
● Specification: Bluetooth V2.0
● SIZE:42X22X(6+6)MM
● CPU：BlueCore3-Audio
● Wireless frequency：2402MHZ─2481MHZ
● Transmitted power：Class 2(MAX 4dBm)
● Received Sensitivity：-77dBm
● Charging power sourcing ：100v-240v
● Working voltage：3.7v
● Rechargeable Li-ion 120mAh
● Charging time is about 120 minutes
● Talking time 6 hours
● Weight:10g
● Standby 120 hours
● Operating range 10 meters