This is a 7.1 external USB audio sound card for your PC or laptop
This USB sound card is the world's smallest USB sound card
USB powered, electromagnetic interference in the pc case is eliminated
Longer service life, can be plug and for ten thousand times
Great quality, no noise when you use it
About 3D Usb Sound Card
Audio Sound Card Adapter is a highly flexible audio interface, which can be used with either laptop or desktop system. No driver required, plug-and-play for instant audio playing and compliant with all mainstream operation systems. Simply Plug the Sound Adapter into your USB port, and then plug your headphones into the Adapter.