Bluetooth version	v4.2
Bluetooth chipset	CSR 63120
Bluetooth profile	HSP, HFP, A2DP, AVRCP
Input	5V, 1A
Impedance	50Ω
Frequency range	2.402~2.480GHz
Battery capacity	3.7V, 220mAh
Charging time	1.5-2.5 hours
Usage time	13-14 hours
Operating distance	10m