MIDI Keyboard with 49 full-sized, velocity sensitive square-front keys, perfect for playing Virtual Instruments. 8 velocity- and pressure-sensitive backlit pads for beat production and clip launching. 4 assignable knobs and 4 assignable buttons interface with your music software. Seamless, visual feedback via illuminated buttons and knobs. Octave Up and Down buttons let you access the full keyboard range and Pitch and modulation wheels deliver expressive, creative control. Production software included: Ableton Live Lite 9 and Xpand!2 by AIR Music Tech (downloads). USB power and USB-MIDI connectivity for Mac and PC.