The LPK25 laptop performance keyboard is a USB-MIDI controller for musicians, producers, DJs and other music creators. It measures less than 13 inches across and weighs less than a pound to easily fit into a laptop case, backpack or messenger bag for extreme portability. Specifications: USB-MIDI controller works with virtually all audio software 25 velocity-sensitive mini-keyboard keys Arpeggiator, sustain button, octave up and down, and tap tempo controls Plug-and-play USB connection for Mac and PC requires no driver installation Small enough to fit in a backpack or laptop bag Four programmable memory banks Comes with editor software for Mac and PC USB bus powered; no additional power cable needed 1 YEAR WARRANTY
