The Electro-Harmonix Big Muff Pi with Tone Wicker is a guitar effects pedal that taps into the sonic power of the legendary Big Muff Pi, and creates new tonal possibilities at the flick of a switch-or two. Use the Wicker switch to open up 3 high-frequency filters for raspy, sustaining distortion with top-end bite, or flick on the Tone switch to bypass the tone control for unabated tonal slam. Want the original Big Muff sound? Just switch off the Wicker and turn on the Tone. The ability to create your own personal Big Muff sound is what truly makes this guitar pedal the Wicked Wicker.Please message us if you have any questions.