The Pioneer DJM-900NXS2 is a professional 4-channel DJ mixer designed for club installations and professional touring. It features a 64-bit mixing processor for a more natural, warm, and detailed sound, along with improved EQ and fader curves. The mixer boasts an enhanced FX section, including 6 Sound Color FX and 14 Beat FX, all with detailed parameter control. Dual USB ports allow for seamless DJ changeovers, and it's Pro DJ Link compatible for advanced integration with Pioneer CDJs.