Digitech, Digitech, Whammy 4-JR Effects unit, main unit Like new, in excellent condition. Operation confirmed. No problems. Includes box, instruction manual, and warranty. Whammy 4 Generation Model, Digitech Product Description The ultimate pitch shifter pedal evolves further. The 4th generation Whammy! Since the debut of the original Whammy in 1989, the explosive popularity has continued to evolve without diminishing, the pitch shifter pedal "Whammy! Type: Electric Guitar