The Pioneer DDJ-FLX4 is a 2-channel DJ controller with a black design that supports USB connection. Used a few times. Operation confirmed. - Model Name: DDJ-FLX4 - Brand: Pioneer - Connection Terminals: USB, RCA - Control Features: 2 channels - Design: Black - Included Accessories: Main unit, box (No cable) Thank you for viewing. I have two, so I'm selling one.