Designed for the performing musician or the conventional composer, APC Key 25 is the first Ableton Live controller from Akai Professional that is equipped with a high-performance keyboard.� Uniting the power of a clip-launching panel with a keyboard interface, APC Key 25 couples� real-time control of Ableton Live with traditional composition tools: create melodies, compose bass lines, and play chords with 25 synth-action mini keys. Plus, dedicated buttons for Octave Up, Octave Down, and Sustain expand the expressive capabilities of the keyboard, enabling you to tap into the full melodic range and perform with classic piano-style sustain. Requirements: Macintosh: Intel Mac with Mac OS X 10.5 or later, Windows: Windows XP, Windows Vista, Windows 7, Windows 8 or Windows 10; multicore processor; 2 GB RAM; Windows compatible sound card (ASIO driver support recommended), QuickTime recommended, Available USB Port. � Features: � Powered by the mighty Ableton Live controller One-to-one correspondence between hardware controls and Ableton interface for simplifying the process of composition Clip-launching matrix with visual feedback as to the status of the track 25 synth-action keys and 40 responsive triggers Octave Up, Octave Down, and Sustain buttons for a wide tonal range USB and plug-and-play connectivity for easy interfacing with computers Package includes Ableton Live Lite, Hybrid 3 by AIR Music Tech, SONiVOX Twist, and Tool room artist launch packs for creating fascinating sound patterns Specifications: Number of Keys: 25 Type of Keys: Non-weighted Number of Performance Pads: 40 Number of Encoders/Pots: 8 Mac System Requirements: Intel Mac with OS X 10.5 or later Buttons: Octave Up, Octave Down, and Sustain buttons Personal Computer System Requirements: Multicore Processor with Windows Compatible Sound Card, Windows XP, Vista, and Windows 7 or 8 Includes: USB Included: Ableton Live Lite, Hybrid 3 by AIR Music Tech, SONiVOX Twist, and Tool room artist launch packs