Guitar effect - fuzz/octave pedal from MXR series, which combines the functions and circuitry La Machine Fuzz pedal with an added signal circuit Sub-Octave. It offers classic controls Volume, Tone, Fuzz, but in addition it also features control Sub for adjusting Sub-Octave signal and switches Series (between modes Series/Parallel), Octave (fuzz Octave increase) and Bypass (pedal on/bypass mode). Power supply by 9 V battery or AC adapter. Dimensions: 124 x 92 x 54 mm.