Roland 32-key MIDI Keyboard Controller, black (A-300PRO-R) 32 velocity-sensitive keys with channel after touch 45 assignable controls: knobs, sliders, buttons, transport and more. 8 Dynamic Pads for finger drumming and MIDI triggering USB Bus Powered - no AC adaptor required (AC adaptor is an optional). Bundled with the Cakewalk Production Plus Pack including three incredible instruments and production software