USB connectivity allows access to USB flash drives and most MP3 players (Mass storage class FAT, HFS+ file formats only) External controller for compatible software, including CUE and Serato Large, touchOsensitive scratch wheel manipulates all media, not just CD, with 7 customizable settings MultiOfunction push knobs for selection of effect parameters, folders and songs MultiOfunction, backlit LCD screen displays BPM, CD text, MP3 ID tags, and file names 6 assignable buttons for seamless loops, samples, or hot cues Real time adjustable loop creates seamless mixes on the fly Integrated, beatOsynced DSP effects include chop, echo, filter, flanger, pan and phaser