The package is equipped with 4pcs external 5.1 USB stereo sound cards(2 black & 2 blue), with a 3.5 mm headset and microphone. The sound card supports 3D sound. Virtual 5.1 sound effect. It does not need the existing sound card and works independently. Compatible: Digital devices with USB ports. Supported operating systems: Compatible with Windows, compatible with Windows 98/2000/Me/XP, OS Mac 8.6 or above. It fully supports WAV/MP3/WMA/MPEG1 VCD/MEG2 SVCD,/AVI/DVD Audio/DVD AC3/DVD DTS/DiVX files. Pair with USB hub or USB expansion cable for flexible installation. No driver is required, no external power supply is required, and USB is fully powered, plug and play, replacing the traditional sound card. Headphone and speaker connector: 3.5mm internal th.
eBay