61 Key Semi-Weighted Controller Keyboard, Velocity Sensitive and Aftertouch Keybed. Features Encoders, Transport, Modulation Wheels, Faders and Pad Controls, 32 Digit LCD Screen for Realtime Feedback, Loads of Included Presets with Simple Navigation, More than 200 Factory Installed Multi-Patches, MIDI, USB, Aux and Expression Pedal Connectivity. Compatible with Included Analog Lab and Most Other MIDI Software. Analog Lab Features a Huge 6000 Synth Sounds.