The AKAI MPK61 is a MIDI controller keyboard designed for use with music production software. It features 61 full-size, semi-weighted keys, a 4-way joystick for pitch and modulation control, 16 MPC-style pads with RGB backlighting, 8 assignable knobs, and 4 banks of assignable controls. The MPK61 is designed to provide a comprehensive and intuitive control surface for music production, allowing users to easily control their software instruments and effects.