Boss OC-2 Octave Pedal
This Boss OC-2 has some minor scuffs, but it is in Very Good condition.
The OC-2 Octave pedal lets users fatten up their sound by adding two additional tones--one and two octaves below the original note. Each tone has a separate volume control and plays back with outstanding clarity.
This pedal has been discontinued, but there are many who prefer it to newer products, especially for bass.