Very Good Condition. I've had great experience with this controller. I've upgraded. It works great with Serato DJ. Comes with original box. Any questions let me know! Product Information The Numark Mixdeck Quad Digital DJ Controller comprises a four-channel mixer, two large backlit displays, and a MIDI interface. Equipped with Crossplay technology, it can play USB content from both the decks, allowing the DJ to mix and match tracks. A set of beat and pitch tools are available, to assist the user in beat matching and harmonic mixing. This controller also displays the beats per minute, analyses it, and lets you make manual entries.