Feature:1. 25 velocity sensitive mini keys, with 3 velocity curve and 1 constant velocity; 8 Assignable rotary knobs, each can be edited by user.2. 16 premium velocity and pressure sensitive performance pads with RGB backlit, can be assigned easily as pads, MIDI note buttons.3. 2 touch sensors of dynamic pitch bend and modulation touch strips; Play and record transport control buttons.4. Powerful and Arpeggiator for generating ideas quickly; Fixed Chord mode; Brilliant OLED display for immediate parameter setting.5. 6.35mm standard sustain pedal jack, compatible with switch pedal; you can also connect to your hardware with the standard 3.5mm TRS MIDI Out jack.6. USB 2.0(FULL SPEED) interface, compatible with for Win XP/7/8/10/11/Vista and for OSX or higher systems, without drive and hot plug supported; Power supplied by USB.Specification:Specifications:Color: Black + WhiteOperating system: Compatible with for Win XP/7/8/10/11/Vista and for OSX or higherItem size: 31.9 * 19.3 * 5cm/ 12.6 * 7.6 * 2inItem weight: 800g/ 1.8lbs.Package List:1 * MIDI Controller1 * USB Cable1 * 3.5mm to MIDI Cable