Dj Controller to connect a Computer for Audio Recording and Playback</br>Stereo Output Provides a Second Mix</br>Output For DJ's Laptop</br>Easy Line Input for External Devices</br>USB Powered?? Includes Software for Recording Editing and Mixing</br></br>Product Description</br></br>AD-IO 4 Channel USB Sound Card with ASIO</br><br/>http://www.amazon.com/gp/product/B00BCA4D46