Real USB Plug & Play (No Drivers Needed for WinXP).
Driver 2CH Speakers Directly and virtual 5.1 CH sound track.
Support 3D positional sound.
USB port power Directly.
External power adapter NO NEED.
Digital Class-B Power Amplifier inside.
Leading USB Audio Digital Technology in the world. Retail Package.
Buy 1+ @ $15.50 each|
Buy 3+ @ $13.95 each
Buy 10+ @ $10.50 each
20+ Call for the best price