USB Sound 7.1 Channel Adapter double MIC+Audio inputs Plug and Play Features: 100% Brand New and high quality. Compliant with USB2.0 Full -speed ( 12Mbps ) specification . Compliant with USB Audio Device Class Specification1.0 . Compliant with USB HID Class Specification1.1 . USB bus – Powered mode. No external power required . Connectors: USB Type – A, Stereo output jack, Mono microphone- input jack . Functional Keys: Microphone-Mute, headset-Mute, Volume-Up, Volume-Down . LED Indicators: Microphone-Mute Status. Activity . Include Xear 3D,the virtual 7.1 channel sound simulation software for Windows XP / Vista. No driver required for Windows 98 SE/ME/ 2000/XP/Server 2003/Vista, For Linox, For Mac05. Specifications: Color: Black Audio Ports: 3.5mm Input, 3.5mm Output Channels: 7.1 Size: 6.2*5.2*1.3cm Package Includes: 1 x Sound Card