Voodoo Lab TremoloThis product only ships within the United States The Voodoo Lab Tremolo re creates the buttery, seductive tone of a vintage tube amp tremolo. This is accomplished by using the same lamp and photocell assembly found in many popular vintage amps. This pedal also features a slope control which lets you adjust the feel from a traditional soothing tremolo to a hard 'machine gun' stutter. Speed and intensity controls provide a wide range to include very