Boss OC-3 Super Octave Bundle with Instrument Cable, Patch Cable, Picks, and Austin Bazaar Polishing Cloth World's first compact pedal with true Polyphonic Octave effects New Drive mode adds distortion to octave notes for a fatter, more aggressive tone Includes the original OC-2 mode, capable of producing notes one and two octaves down Poly Octave effect adjustable to play within a specific note range Bass input for adapting octave sound to bass guitars