Numark DJ|iO is a compact, portable audio interface expressly designed for DJs, mobile music producers and other musicians who work with computers. You'll find DJ|iO to be a convenient missing link in your setup because it connects easily with a standard USB cable to the computer and supplies extremely high-quality, 24-bit audio to output systems. DJ|iO has stereo outputs for a main sound system, a secondary or monitoring system and headphones, as well as a microphone input with a hardware volume control. The audio interface comes with premium ASIO drivers, which enable you to easily optimize your system’s audio performance.