1.7.1surround sound only work on Window System，download drive at WWW.SADES.CC
2.If you guys have any problems ，send email to seller
SPECIFICATION:
Loudhailer diameter: 50mm (NdFeB)
Frequency range: 20~20.000Hz
Sound effect : 7.1 simulated sound channels
Sensitivity: 111dB +/- 3 dB at 1 khz
Impedance: 32 Ohm at 1KHz
Max Input power: 30mW
Mic Dimension: 6.0*5.0mm
Mic Frequency Range: 50-10KHz
Mic Sensitivity: -38dB +/- 3 dB
Mic Impedance: smaller than 2.2K ohm at 1khz
Cable length: about 2.2m
Input Plug: USB (USB connection provides power)
Pckage Content:
1*Sades R8 headset Item with SADES gift retail packing
1*CD Driver
NOTE:
the driver of the headset only supports Windows XP/Win7/Win8/Win 10/MAC generic (no drivers). but not support Apple/MAC and other computer system to install . This headset can be used as general headsets for Windows system without the Driver.