25 waterfall keys and 9 backlit drum pads are velocity-sensitive and customize assignable, enabling expressive and dynamic sound.OLED Display places instant visual feedback of DAW mode selection, parameter changes, CC and so much more.Built-in arpeggiator makes it easy to change rhythm, beat, pattern and octave. OTC+ and OTC- buttons enable access to the full keyboard range. COPY and PASTE can easily duplicate the drum pad's setting.1/4" sustain interface supports adding an universal sustain pedal to enrich the sounds.Come with Cubase LE12 & Cubasis LE3 software, good for beginners to get started with audio engineering and music production.