B00CAKSVTU Korg, 27-Key Sound Module (VOLCAKEYS)

Three note true analogue synthesis with one knob per function for easy hands-on tweaking
16-step sequencer with Flux mode for non-quantized free flowing loops
Sync In and Out allows clock sync of multiple instruments from the volca Series
MIDI In for note entry, plus external sync and control from your DAW
Play anywhere with the built-in speaker and optional battery power