Brand SADES Model SA-907 Color Black + blue Material ABS + aluminum alloy + PU leather Interface Type USB length 3 M Impedance 32 ohm Sensitivity 108 +/- 3 dB Headphone Frequency Response 20~20000 Hz Microphone Frequency Response 30~16000Hz Features 7.1 simulated surrounding sound system; 50mm optimally neodymium drivers; Analytical and high solution audio reproduction; Blue genius glittering like the wildfire in the hell be with a dead chill and amuck breath; ABS engineering material headband leads to multipoint partial pressure and effectively disperses the pressure to head; Super tensile braided headset cable; Capability of bearing accidental dragging by 5 times than ordinary cable; Special ambient noise isolation superb leather ear-pads comfortable to wear; Signal-directional microphone employed with Pure mute environment noise cancellation technology which effectively filter the background noise Other Sound effect: 7.1 simulated sound; Maximum output power: 50mW; Input plug: USB; Microphone diameter: 60 x 5.0mm; Microphone sensitivity: -54dB +/- 3dB; Impedance: Packing List 1 x Headphones (300cm-cable) 1 x Software CD 1 x Chinese / English user manual CD: http://m5.img.dxcdn.com/CDDriver/CD/sku.231945.rar