T-Rex Engineering BASS-JUICE Bass Guitar Distortion Pedal Featuring Organic Distortion Specifically Designed for Bass Guitars; Includes Independent Boost and Mix Control (10201) Organic distortion pedal specifically designed for bass guitars With boost function off creates awesome sustain with rich, creamy overtones and big bottom Mix control to blend just the right amount of distortion with your original clear tone Engage the boost function for fuzz tone heaven On/Off and Boost illuminated indicator lights