ELECTRO-HARMONIX / BASS BIG MUFF PI Electro-Harmonix Big Muff Fuzz Functionality confirmed and works without issue. --- The following is a product description --- The Bass Big Muff is a distortion pedal optimized for bass. With simple controls that are easy for beginners to use, it delivers the heavy distortion sound of the Russian-made Big Muff. It also features a function to mix the effect sound with the original sound, allowing you to add powerful distortion while maintaining a thick, core sound. Recommended not only for bassists but also for guitarists seeking a thick low-end sound. ■ Bass Guitar Effects Pedal ■ Distortion ■ Controls: Volume, Tone, Sustain, Boost Switch ■ Dry/Effect: Equipped with two outputs ■ True Bypass ■ Power: 9V battery or DC9V universal power adapter (sold separately) ■ Dimensions, Weight: 91W x 118D x 50Hmm, 360g ~ From the manufacturer's website ~ ■ The Big Muff, synonymous with fuzz/distortion, has captivated countless guitarists and bassists for over 40 years since its debut in 1968. The Bass Big Muff is a further evolution, optimized based on the Big Muff. ■ Based on the army green Russian version of the Big Muff, which is popular among bassists, the Bass Boost / Norm / Dry switch has been added. In the Dry position, the dry sound can be added. The thick core of the dry sound and the distortion effect components are both achieved, creating the ideal bass distortion sound, perfect for bass guitar.