Powerful USB MIDI keyboard controller with 49 full-sized, square-front velocity-sensitive keys that provides a series of intuitive pads, knobs and buttons for easy control of music software. It features 8 velocity and pressure-sensitive backlit pads for beat production and clip launching; 4 assignable knobs and 4 assignable buttons that interface with the software, manipulating effect plugins and virtual instruments; Octave Up and Octave Down buttons that provide the full keyboard range; and Pitch and Modulation wheels that deliver expressive, creative control. Controller is also equipped with sustain pedal input, and USB and MIDI ports for connection of Mac or PC. USB cable and download of production software Ableton Live Lite 9, as well as Xpand!2 by AIR Music Tech, is included. Dimensions: 114 x 955 x 243 mm. Weight: 4.3 kg