Gemini DJ SLATE 4 USB/MIDI 4-Channel DJ Controller Digital DJ controller with large, touch-sensitive control wheels packaged with Serato DJ Intro software Mix, scratch and perform with the music on your computer via dual-deck layout complete with 4 channel mixer section 8 full color performance pads per deck provide Hot Cue, Auto Loop, Manual Loop and Sampler functions Built-in audio outputs for mix and previewing Includes Serato DJ Intro software - Upgradable to the full version of Serato DJ