The APC Key 25 from Akai Professional is hardware controller designed to work with Ableton software in a one-to-one integration, and features a high-performance keyboard in addition to the clip launching matrix. The controller comes pre-mapped to Live for an instant performance and production setup. Uniting the power of a clip-launching panel with a keyboard interface, the controller couples real-time control of Ableton Live with traditional composition tools - create melodies, compose bass lines, and play chords with the keyboard. Dedicated buttons for octave up, octave down, and sustain expand the capabilities of the keyboard. Features: Provides hands-on control of Ableton Live Seamlessly integrates one-to-one with Ableton Live 5 x 8 clip-launch matrix with tri-color lighting displays current clip status Twenty-five synth-action mini keys Eight assignable control knobs Shift button and directional arrows manipulate the scope of the grid Dedicated octave up, octave down, and sustain buttons USB-powered and plug-and-play connectivity for Mac and PC