Meet the Arturia BeatStep: a USB/MIDI/CV controller & sequencer that gives you control over DAWs, drum software, VST effects, and MIDI instruments. It comes with 16 pressure and velocity sensitive pads, rotary encoders, and a jogwheel. In controller mode, the pads and rotary encoder knobs can be used to interact with an iPad.
The device is compatible with BFD, Kontakt, Ableton Live’s Drum Rack, EZ Drummer, Addictive Drums, and other comparable software. Its rotary encoders can be MIDI mapped to control filters, EQs, and other effects.[where to get it]