Vestax VCI-400 Professional MIDI and Audio DJ Controller with Built in Mixer 4 virtual-deck controls with Instant Deck Select Included overlays: Serato DJ Intro, Virtual DJ LE 4 Decks, Traktor Pro2, Blank (for user customization) Highly responsive stress-free soft touch buttons Transport buttons with maximum 3 banks of mapping Premium full-bit sound quality generated by a low latency high resolution 24bit/48kHz soundcard