Experience legendary tone with this Used Electro-Harmonix Big Muff Pi Distortion Effect Pedal, renowned for its rich, creamy sustain and iconic fuzz sound that shaped decades of rock music. This unit is in great condition, showing minimal wear and working flawlessly. Housed in a durable metal chassis, it features three simple controls��Volume, Tone, and Sustain��for shaping thick, saturated distortion with ease. Made in the USA, this classic pedal runs on a 9V battery or optional AC adapter (not included). From soaring solos to thunderous rhythm tones, the Big Muff delivers unmistakable vintage character that's perfect for guitarists and bassists alike.