•Footswitch toggles Effect On/Bypass (red LED indicates on)
•Range knob controls frequency floor of effect
•The Q knob adjusts the intensity of the wah effect
•The Volume controls overall effect output level (inactive in Bypass mode)
•Decay knob controls the drop-off of the wah effect (with Blend knob off) or transition between wah and shimmer (with Blend dialed up)
•Blend knob controls the mix between auto-wah and shimmer
•Rate knob controls the speed of the shimmer effect
•Band switch selects favored frequency range of effect