5.1USB to 3.5mm mic headphone Jack Stereo Headset 3D Sound Card Audio Adapter 100% brand new and high quality Plug and Play USB 2.0. USB bus-powered mode, no external power required. Digital Class-B power amplifier inside. Supports 3D post tonal sound and virtual 5.1 CH sound track. Speaker/headphone jack Microphone jack. Work for Windows 2000 / XP. Plug & Play, no installation required! Compact, portable, convenient to carry. Color: send random color (If you buy more than one, you may receive the same color or several colors.) Dimension (L*W*T): 5.1 x 2.2x1.2cm(approx) Quantity: 1 pc Note: Due to the difference between different monitors, the picture may not reflect the actual color of the item. Please understand, Thank you!