The US Dream effector is a guitar effects pedal with three knobs (Volume, Tone, Distortion) and true bypass functionality. - Model Name: US Dream - Function: TRUE BYPASS - Number of Knobs: 3 - Knob Types: Volume, Tone, Distortion I've used it once, and it's excellent, capable of everything from crunch to overdrive and high-gain distortion. It's compact and lightweight, so it doesn't take up much space. For some reason, the pilot lamp doesn't light up. Please understand this before purchasing.