The LPK25 keyboard boasts a sleek, lightweight design and easily fits in laptop cases and backpacks. Therefore, if you are a globe-trotting musician, this keyboard serves as an ideal companion. Given the LPK25 offers support for USB connectivity, all you need to do is plug this instrument on to your laptop and lay your fingers on it. The enchanting melodies you compose and play on this keyboard are sure to captivate your audience and keep them listening in rapt attention. 25-key USB MIDI keyboard controller gives you expressive performance with computer-based digital audio workstations, sequencers, and more 25 velocity-sensitive mini-keyboard keys are highly portable; writing sessions, capturing ideas and studio use with nearly all music creation software Built-in arpeggiator provides melodic inspiration and versatile patterns for modern music production Plug-and-play USB connection for Mac and PC; no driver installation required. Perfect for Pro Tools, Logic, Cubase, Studio One, Reaper, Digital Performer, Ableton, etc USB-powered; no additional power cable needed Sustain button, octave up and down, and tap tempo controls ensure your ideas translate from head to hardware Includes editing software for Mac and PC; easily customize the keyboards' MIDI commands to fit your workflow. � The LPK25 enables you to program and store configurations to suit the requirements of different software applications. You can retrieve these settings from its memory banks when needed.Convenience is Key Features: USB-MIDI controller is compatible with virtually all audio interfaces 25 velocity-sensitive mini-keyboard keys with synth action Arpeggiator, sustain button, octave up and down, and tap tempo controls Plug-and-play USB connectivity for Mac and PC; requires no driver installation Compact design to make it fit in a backpack or laptop bag Four programmable memory banks Includes editor software for Mac and computers No power adapter needed thanks to USB connectivity Specifications: Number of Keys: 25� Velocity-sensitive MiniKeyboard Memory Bank: 4� Programmable Memory Banks Number of Knobs: 8� Assignable Controller Pots Software Includes: Editor Software for Mac and PC USB Connection: Plug and Play USB Connection for Mac and PC Additional Controls: Arpeggiator Sustain Button Octave Up-Down Tap Tempo Controls