This pedal has two knobs and two successive gain stages. This allows for a heck of a lot of raging distortion or clean boost. Gain and level knobs stare at the player from the face of the pedal. This pedal pushes itself into overdrive VERY quickly and saturates beautifully. Humbucker and single coil players will equally love this pedal. The Batch just can't be beat! True bypass. The transistors in the II are a bit hotter than the transistors in the I.