Color Black Sample Rate 44.1 KHz Digital Audio 8 bit SNR 80 db Interface USB 2.0 Operating Systems Supported Windows 2000 / XP / Vista / 7 Features Compatible with USB 2.0 full speed; Compatible with USB audio device Class specification 1.0; Compatible with USB HID Class Specification 1.1; USB bus-powered mode no external power required; Connectors: USB type-A stereo output jack mono microphone-input jack; Functional key: microphone-mute speaker-mute volume-up volume-down former-song next-song sop / start; Include Xear 3D the virtual 8.1 channel sound simulation software for Windows XP / Vista; Driverless Packing List 1 x USB sound adapter