Auto wah based on the Dr Q circuit with some upgrades.This pedal with give you all the talk and quack of a wah pedal without having to use your foot to move anything.This pedal has a range,attack and sensitivity adjustment.Each one works with the others to create a mind boggling array of wah effect.This pedal will also work with bass guitar.
Uses a 9volt center negative power supply (not included )does not use batteries

https://youtu.be/fDCVH0tWbFY