The Vexter Fuzz Probe guitar effects pedal is a cross between a theremin and a ZVEX Fuzz Factory. There is an antenna (proximity plate) that projects a field of RF energy that is affected by your foot, altering the circuit that generates it and in so doing, controls the Stability (STAB) knob on the back of the pedal. This lets you select your favorite squealy Fuzz Factory setting. You can also mess around with the STAB knob with your foot, creating melodies and interference modulations with your guitar.

The Vexter Fuzz Probe guitar effects pedal is made in the U.S.A.