Virtual 7.1 CH Channel USB 2.0 3D Audio Sound Card Adapter Mic Speaker£» Description£º 100% NEW. Complaint with USB2.0 speed 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 Include Xear 3D,the virtual 7.1 channel sound simulation software for Windows XP / Vista system: Windows 98SE / 2000 / XP / 7 /8 / Server 2003 / Vista . Linux . mac. Package Content£º 1 x USB 3D Audio Sound Card Adapter 7.1 Ch Mic/Speaker No Retail Packing