The Pioneer DJ CDJ-900NXS builds on the success of its predecessor, the CDJ-900, plus it’s packed with new technology including a full-color LCD screen, Beat Divide, four-deck Beat Sync, and the ability to play sets from a smartphone. The CDJ-900NXS boasts a high-resolution screen, giving DJs a quick and instant view of the Wave Display and Wave Zoom and the ability to view and edit rekordbox beatgrids. The HID interface allows you to use more complex DJ software without a control disk. Key Features The large, full-color LCD display shows all the info you need. Deeper waveform analysis with Wave Zoom, beat countdown, phase meter, track key indicator, and more. Wirelessly connect to rekordbox to play your music from your PC or Mac, smartphone, or tablet. With Pro DJ Link, you can connect multiple players, turntables, or laptops via LAN connection and share a single source. Combine this with rekordbox to access pre-prepared loops and cues, sync the beat with the master deck, and access a host of advanced pro-DJ features. Keep tracks playing muted during live edits such as loop, scratch, or reverse. Release the jog wheel and the track comes back to exactly the right place. Quantize snaps cues and loops to the rekordbox beat grid for a reliable performance every time. Slice up the beat and roll it around in a loop with the Beat Divide buttons. Or combine them with Slip Mode to activate Slip Loop, so the track instantly comes back in at the right place when you release the button. You can use this product with the rekordbox Core plan or above to control rekordbox software via your PC or Mac. Other Features It still plays your MP3, AAC, WAV, and AIFF files stored on USB devices. Pro-quality audio circuitry comes as standard, with a built-in 24-bit and 48 kHz soundcard and a new IEC connection for a powerful sound even at club volumes. This unit supports USB-HID control of Native Instruments’ TRAKTOR PRO 3 DJ software, so you don't need a control disk. This unit supports USB-HID control of Serato Audio Research's Serato DJ Pro software without using a control disk. This device is fully MIDI-assignable via USB. Send control information to external devices and use the unit as a MIDI controller. Use rekordbox to set automatic loops at the end of your tracks so you never get caught unprepared again. Automatically beat match up to 4 decks playing tracks analyzed in rekordbox, leaving you free to focus on adding your unique mark on the mix. Master Tempo lets you adjust a track’s tempo without affecting its pitch, keeping it more faithful to the original.