The UMA25S is a super-slim controller keyboard with a fully fledged USB audio interface. It has 25 velocity-sensitive keys for the slickest set of glissandos and snappiest of arpeggios. This little monster has 21 assignable controllers to give you total control. We included the DAW software Ableton Live Lite 4 BEHRINGER Edition plus a plethora of software widgets allow you to rock straight out of the box. Fun guaranteed. • 25 velocity-sensitive, full-size keys Built-in USB audio interface • Kristal Audio Engine sequencer Audacity audio editor • Over 100 virtual instruments More than 50 effect plug-ins • Powerful DAW software Ableton Live Lite 4 included • 21 assignable controllers