1- Charging voltage:                      MICRO USB 5V
2-Working current:                        10-20mA
3- Bluetooth Working range:         !#!lt!*!10M

4-Output power:                            2x18mW  
5-Frequency range:                      2.401-2.480GHz
6- Distortion factor:                       !#!lt!*!1%
7-Frequency response:                20Hz-20KHz
8-Working Time:                           Music state 10 H/ Talkingstate 15H
9-SNR:                                         S/N!#!gt!*!95
10- Charging Time:                      2h
11-Bluetooth name:                      HBS-750 
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                           !#!gt!*!500H
17-working environment               -10~60
 

 Package including:
1*TM-750 Wireless Stereo Headset
1*Data line
1*Charging plug