SPECIFICATIONS: 1.Loudhailer diameter: 40mm(NdFeB) 2.Sound effect: 7.1 simulated sound channels 3.Frequency range: 20~20.000Hz 4.Sensitivity: 112dB +/- 3 dB at 1 khz 5.Impedance: 32 Ohm +/- 15% 6.Max Input power: 30mW 7.Mic Dimension: 6.0*5.0mm 8.Mic Frequency Range: 50-10KHz 9.Mic Sensitivity: -38dB +/- 3 dB 10.Cable length: 2.2m 11.Input Plug: USB PACKAGE CONTENT: 1x SADES SA-902 7.1 Surround Stereo Headset With Microphone 1x SADES CD driver FEATURE: Omnidirectional Microphone.Adjustable mic to reduce environmental noise so you can be heard clearly. You can adjust it up and down or move it completely out of your way for clearest voice pick up. Excellent sound quality£º40mm HIFI capable driver with 20~20KHz frequency response, deep bass and 7.1 virtual surround sound. The protein leather foam headband adjust to itself according to who's wearing it, over ear super soft ear cups to keep your ears comfortable during long gaming session. NOTE: Compatible with WINDOWS 10 , Drivers Ready to Download. Compatible with Windows XP, Vista, 7, 8, 8.1 MAC Generic Use (No Drivers) Remind to adjust audio output of your PC/Mac to Headset/Headphones/Other Modes