Erinaq wood controller 4 volca is a handcrafted wood midi controller specially designed to control 4 Korg Volca. The volcas can be placed in different angles thanks to the ergonomic design. It offers a very sturdy construction and can be transport with out any problem. You can easily select octave range and midi chanel with the buttons on the Console. includes pitch wheel modulation. Power source included. Midi out, sustain pedal in, usb connection.