The Dj-Tech U1 Station is a complete DJ package with a Mixer and dual deck players all in a single, compact and very portable unit: 19-inch 3U size for 2.2kg only. Manipulate MP3s like did with CD players but just carry less. With two jog wheels, play, pause, pitch, cue and loop functions, operation is identical as a traditional dual CD deck, however, all music is played back from SD cards or USB memory stick, USB hard drive or even MP3 player. The unit has two SD card inputs, each deck can be assigned to playback from any of those two card slots. Can even play two tracks from the same card if required. Each slot takes an SD card up to 4g, meaning can have 100s of MP3 tracks at finger tips. U1 station has the fastest access to data, plug and play within 3 seconds. Also to the clear LCD screen which will display all ID3 tag info title, artist and album (ID-tag).