Bluetooth version	v4.2
Bluetooth profile	HSP, HFP, A2DP, AVRCP
Bluetooth chipset	BES 2000-IS
ANC chipset	BES 2000-IS
Noise reduction	Up to 25dB
Input	5V
Impedance	32Ω
Speaker frequency	20Hz-20,000Hz
Charging time	1.5 hours
Playing time	5-6 hours
Standby time	200Hours
Battery capacity	120mAh
Battery type	Li-Polymer
Operating distance	10m