Featuring six whammy, 10 harmony and deep/shallow detune modes, the Whammy 4 is one of the most versatile and praised octave/pitch shifters available on the market. This little red rectangle gives you a full control over sending your sound plummeting through the floor or piercing through the ceiling for a world of shifting, experimental effects. A known favorite of Tom Morello, Jack White, and Troy Van Leeuwen.