OVERVIEW: SADES, with over 20 years of strong technical force and specialist manufacturing experience, is outstanding from the circle of gaming peripherals, devoting life to provide highest quality and expert gaming accessories. Company with its own industrial park and also 250 R&D technicians for modeling, structure design, electronics, userinterface, and software, has introduced latest high level modernization production assembly line,the backend facility, and automatically mechanized production equipment's, while being lead-free and environmentally friendly responsible.ISO9001, ISO14001,CE,ROHS,SVHC,FCC,UL,FDA are certified. SPECIFICATIONS: 1. Loud hailer diameter: 40mm(NdFeB) 2. Sound consequence: 7.1 simulated sound channels . 1: 112dB +/- 3 dB at 1 kHz 5. Impedance: 32 Ohm +/- 15%6. Mic Dimension: 6.0*5.0mm 8. Mic Frequency Range: 50-10KHz 9. Cable length: 2.2m 1-1. Input Plug: USB PACKAGE CONTENT: 1x SADES SA-902 7.1 Surround Stereo Headset With Microphone 1x SADES CD motorist FEATURE:*Omnidirectional Microphone. Adjustable mic to reduce environmental noise which means you could be heard clearly. You're able to correct it along or move it out of the right path to get clearest voice pick up. * Excellent sound qualityÂÂº40mm hi-fi capable driver with 20~20KHz frequency response, deep bass and also 7.1 virtual surround sound. The protein leather foam headband adjust to it self to who's wearing itover ear soft ear cups to help keep your ears comfortable during long gaming session. NOTE: Compatible with WINDOWS 10. Compatible with Windows XP, Vista, 7, 8, 8.1 MAC Generic Use (No Drivers) Remind to adjust sound output of your own PC/Mac into Headset/Headphones/Other Modes.