About this item JOYO UZI distortion pedal, designed for heavy metal, it's characterized by High-Gain. with a "BIAS" knob, switch easily between American Distortion and British Distortion. "GAIN" Knob and "VOLUME" Knob, both are of dynamic balance, adjust the "GAIN" knob while don't adjust the VOL, the signal from the circuit will adjust automatically, ensuring the volume is the same as before. Whole new appearance and the iconic ambience lights bring out futuristic and retro styles, will make our soul happy whether are jamming in the bedroom, studio or on the stage. JOYO has over a decade of brand reputation, and its most popular budget pedals, amplifiers, wireless systems, controllers, metronomes, tuners have won the love of guitarists all over the world and inspired people's musical dreams. Before playing, please make sure the guitar is fully connected with the pedal. in order to make JOYO pedals work properly and avoiding unexpected noise, we recommend you to purchase an extra JOYO original power adapter, or choose the other reliable brands and make sure it meets the working current requirement of single pedal. › See more product details