Electro-Harmonix Op-Amp Big Muff Pi fuzz pedal.

• Fuzz
• Circuit with a faithful recreation of the iconic late-70s Big Muff Pi op-amp with many practical improvements, including a compact die-cast chassis with authentic bypass switching
• Volume, Tone, and Sustain controls
• Footswitch: Tone On/Off
• LED: Effect On
• Footswitches: Effect Bypass
• 1/4" jack input
• 1/4" jack output
• Power supply input (2.1 x 5.5mm barrel connector and negative center)
• Current consumption: 5mA
• Operates on a 9V battery or 9V DC power supply, not included
• Authentic bypass
• Dimensions: 70 x 114 x 53mm