USB (Universal Serial Bus)-MIDI controllor works with virtually all audio software Eight backlit velocity-sensitive drum pads can send note CC or program change Eight Q-Link knobs for controlling virtually any parameters in software Plug-&-play USB (Universal Serial Bus) connection for Mac & 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 & PC USB (Universal Serial Bus) bus powered no additional power cable needed