Easy To Use: Small and portable, ultralight size, easy to carry and use. USB 2.0 high speed, backward compatible with USB 1.1. Plug & PlayL: Easy to use, no external power supply, plug and play, no driver required. Advanced Technology: Multichannel technology realizes 7.1channel dynamic sound effects, giving you a better user experience. High Quality: Rugged and durable, it is made of aluminum alloy and can be used for a long time. Interface: Interface requirements, USB type A, stereo output receptacle, microphone input jack.