DDJ-FLX4 - Model Name: DDJ-FLX4 - Connection Type: USB Connection - Included Items: Cables, Manual, External Optical Drive - Functionality: Compatible with Serato DJ Lite - Controls: 2-channel controller Thank you for viewing. I am selling this as I bought it but never used it. It is in excellent condition with no signs of use. I think it's a great deal as it includes the included cables, instruction manual, as well as a separately purchased external optical drive and stereo mini-plug. You can start playing immediately after the product arrives.