1- Charging voltage:             MICRO USB 5V
2-Working current:               10-20mA
3- Bluetooth Working range:      10M
4-Output power:                  2x18mW  
5-Frequency range:               2.401-2.480GHz
6- Distortion factor:            ≤1%
7-Frequency response:            20Hz-20KHz
8-Working Time:                  Music state 10 H/ Talkingstate 15H
9-SNR:                           S/N≥95
10- Charging Time:               2h
11-Bluetooth name:              for LG HBS-900
12-Speaker:                     16Ω20mW x 2
13-Battery:                     3.7V/195MAH (Polymer rechargeable battery)
14-ANC frequency                100-1000HZ
15-ANC level                    15-20dB
16-Standby time                 ≥500H