Aural Dream Classic Whammy Octave Guitar Effect Pedal provides Monophonic and polyphonic Pitch Shift Up 1 Oct or 2 Octs and Down 1 Oct or 2 Octs,True Bypass : Amazon.es: Instrumentos musicales
DigiTech D IT Whammy Ricochet Pitch Shift Pedal, Rojo : Amazon.es: Instrumentos musicales