Preowned Electro-Harmonix Nano Big Muff Pi fuzz distortion pedal in very good condition. Works and sounds just like the classic Big Muff but in a more compact design. Features Volume, Sustain, and Tone controls, and true bypass. Powered by either a 9V battery or 9V power supply (not included). In very good condition, showing a few marks to the casing and a small amount of glue residue underneath (not sticky).