* 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