The BOSS OC-3 Super Octave pedal does more than simply add an octave effect to your guitar. You get three different modes, plus the ability to plug in a guitar or a bass. Choose between the cool Polyphonic Octave mode, the Drive mode (with distortion), and BOSS's original OC-2 mode. Whether you're going for mind-blowing psychedelic polyphonic sounds or want to add an aggressive edge to your solos, the OC-3 Super Octave has you covered. Since it has an independent bass input, you can use the OC-3 Super Octave for low-end workouts, too.