Seymour Duncan Shape Shifter Stereo Tremolo PedalThe Shape Shifter is a stereo tremolo pedal designed to deliver the classic textures you love with the capability to render extreme effects such as helicopter chops, piano stabs or backwards swells. The Shape Shifter is one of the most versatile tremolo pedals you will find, whether your style is a classic textural vibe or unexpectedly experimental. The Shape knob lets you control how evenly the signal rises and falls; set it in the middle for a