"This is no ordinary Wah pedal.

Keeley has added two switches, one knob and an LED. The inductor switch, located at the toe of the pedal, allows you to toggle between warmer vintage-voiced sounds to the right and a higher-voiced cutting tone to the left.

The knob located on the right side of the unit is a midrange/volume control, which allows you to dial in more volume and midrange. Rolling it way back counter clock wise gives you a stock setting while rotating it clockwise gives you the midrange and volume goodies. The toggle switch next to the knob is a three-way bass and resonance booster. The center position gives you the stock sound. The rear position offers the kind of sweep capacitor sounds found in Dunlop’s Jimi Hendrix and Zakk Wylde wahs, while the forward position enables the deep and the low."

In excellent condition. I don't have the box. I am selling because I just don't use it.