The Robot is a low fidelity 8 bit pitch transposer with absolutely no feelings whatsoever. It is completely synthetic and transforms any input into a puree of resynthesized robot jargon. Features bendable super lo-fi octave up, octave down, arp, and unity pitches.Control Knob - Located on the right-hand side of the pedal. Controls the pitch of the effect. When turned up completely clockwise, it is at its highest pitch. Turning down, counterclockwise, lowers the pitch or speed of the arpeggiator. Power: 9V (runs ons a positive ring, negative tip 9V DC adapter or included 9V battery). Note: Requires a dedicated power supply and will not work with any daisy chain power system. Current Draw: 23 mA.