Behringer CMD Studio 4a 4-Deck DJ MIDI Controller with 4-Channel Audio Interface Highly integrated 4-deck controller with built-in 4-channel USB audio interface Deckadance* LE DJ software voucher from Image-Line included Compatible with popular DJ software including Native Instruments Traktor*, Serato Scratch Live*, Ableton Live* and any other MIDI-compatible programs Powerful 4-channel USB audio interface with 24-bit converters and ultra-low latency operation under Windows* and OS X* operating systems Large 6 touch-sensitive high-resolution control platters for precise control