The PK-6 Dynamic Pedalboard is an impressive MIDI Controller that enables you to virtually control any MIDI function during live performance. The PK-6 lets you play a variety of sounds from any external MIDI device, leaving your hands free to play your favorite musical instrument like guitar, bass, keyboard or accordion. It features 13 velocity-sensitive pedal keys spanning the chromatic range of an entire octave, and gives you one-foot operation of four separate performance modes: MONO, POLY, DRUM and MIDI CONTROLLER. You also get an easy-to-use UI including a 7 segments x 3 display; HOLD, OCTAVER BASS and PORTAMENTO switches, EXTERNAL PEDAL socket for connecting an optional expression pedal, pedal switch, continuous pedal or foot switch; and PK-OUT socket for direct connection to instruments equipped with a PK-IN socket for MIDI communication and Power Supply. Can also be powered by the included AA batters or an optional AC adapter.