The Hercules DJ Console 4 Mx Black Edition is a large DJ controller with a durable metal casing, built in audio, and large jog wheels. This all in one mixing station for the serious DJ features a 2 4 deck controller to mix digital audio tracks, 2 stereo outputs to play the mix for the audience and preview next track, and 2 stereo inputs to include turntables, MP3 or CD players in your mix. It"s especially built for professional DJing: it"s large enough for comfortable mixing, compact enough to transport to the gig, and there"s no need for a separate audio interface. The two large 4.7" jog wheels feature weight sensors to detect the hand"s weight on the jog wheel top, for fine adjustments during the mix. They"re great for scratching and seeking within audio tracks. While the track plays, you control the DJ software with two actions on the jog wheel: rotation, to control movement within the track, or press down to control scratching. Thus, during audio track playback, you can pitch bend, scratch, and start or stop playback, just like using a real vinyl scratching turntable.4 channel output gives you the flexibility of stereo line output for the mix, plus stereo headphone output for previewing tracks. A microphone input with talk over function means there"s no need to carry an audio interface. There are two independent stereo outputs on the rear panel, with four RCA connectors to connect to a stereo system or recorder as well as four 1/4" mono connectors to connect to a public address amplifier or speakers. The DJ software included with the Hercules DJ Console 4 Mx suggests cue points in the audio file analysis, getting you mixing and producing quickly. Synchronize tracks using pitch encoders and/or sync buttons, and create automatic loops on 1, 2, 4 or 8 beats. Add effects to customize your music, then record your mixes as audio files.