Features: 25 velocity sensitive -keys with 3 velocity curve and 1 constant velocity; 4 assignable rotary knobs and 4 assignable sliders each can be edited by users. 8 velocity & pressure sensitive performance pads with RGB backlit can be assigned easily as pads MIDI notes. 2 touch sensors of dynamic bend and modulation touch strips; Brilliant OLED display for immediate parameter setting. Powerful and creative Arpeggiator for generating ideas quickly; supports Fixed Chord mode; with play and record transport control buttons. 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. USB 2.0(FULL SPEED) interface compatible with Win XP7810 and OSX drive free and hot-plug supported; Power supplied by USB. Specifications: Brand: WORLDE Model: Panda II Color: Black + White Operating system: Compatible with Win XP7810 and OSX. Item size: 31.9 * 19.3 * 5cm/ 12.6 * 7.6 * 2in Item weight: 750g/ 1.7lbs Package size: 38.5 * 21 * 5.5cm/ 15.2 * 8.3 * 2.2in Package weight: 1025g/ 2.3lbs Package List: 1 * MIDI Controller 1 * USB Cable 1 * 3.5mm to MIDI Cable