The Studiologic NUMA NANO hammer-action keyboard offers perhaps the most inspiring pianistic action ever installed in a digital controller. The NUMA NANO also boasts an innovative, touch-sensitive control panel that redefines control and flexibility. The Studiologic You-Play keyboard system helps you to design and save user-specific dynamic curves in addition to 3 supplied preset curves, all on a touch-sensitive pad. The customizable Studiologic NUMA NANO 88-key controller keyboard is worthy of the title "professional keyboard interface."88-keys with a hammer-action keybed (Fatar TP/100LR) Touch-sensitive control panel 2 assignable stereo jack pedal inputs 1 assignable control wheel 1 pitch control wheel 16 independent MIDI channels assignable to all controllers 4 keyboard zones for splits and layers 3 factory-dynamic curves 15 memory user locations for saving velocity-dynamic curves 64 memory locations for patch saving 2 modes of operation: 1st edit: to create patches with all MIDI parameters; 2nd play: to play keyboard and controls and some fast MIDI changes (program change, MIDI channels, transpose, mute) Assignable aftertouch Panic buttons "You Play" feature: the fastest way to create a dynamic curve in real time MIDI out USB class compliant: to connect with PC to load/save firmware updates presets XP/Vista/Mac compatible; no drivers required Powered through a USB cable (not included) and/or included power adapter AC-DC power adaptor kit with 4 detachable plugs: power rating: 9V 500mA, + (positive) wired Includes Fatar PS-100 foot switch; contact is open-at-rest Includes instruction manual Includes 1 music rack Dimensions: 4.8" H x 51.2" W x 12" D Weight: 22 lb.