Alesis V49 | 49-Key USB MIDI Keyboard & Drum Pad Controller (8 Pads / 4 Knobs / 4 Buttons) Perfect building block for music producer needing to control plug-ins and virtual instruments 49 full-sized, square-front keys with adjustable sensitivity 8 LED-backlit drum trigger pads respond to both velocity and pressure 4 assignable knobs, 4 assignable buttons, and Pitch & Mod wheels USB-powered with sustain-pedal input