![Amazon.com: Donner Octave Guitar Pedal, Harmonic Square Digital Octave Pedal Pitch Shifter 7 Shift Types 3 Tone Modes Sharp Detune Flat True Bypass : Musical Instruments Amazon.com: Donner Octave Guitar Pedal, Harmonic Square Digital Octave Pedal Pitch Shifter 7 Shift Types 3 Tone Modes Sharp Detune Flat True Bypass : Musical Instruments](https://m.media-amazon.com/images/I/61esYQXbG4L.jpg)
Amazon.com: Donner Octave Guitar Pedal, Harmonic Square Digital Octave Pedal Pitch Shifter 7 Shift Types 3 Tone Modes Sharp Detune Flat True Bypass : Musical Instruments
![Amazon.com: Digitech Whammy 5 Pitch Shift Pedal Bundle with 3 Patch Cables and Dunlop Variety Pick Pack : Musical Instruments Amazon.com: Digitech Whammy 5 Pitch Shift Pedal Bundle with 3 Patch Cables and Dunlop Variety Pick Pack : Musical Instruments](https://m.media-amazon.com/images/I/81hmrkGHUrL.jpg)
Amazon.com: Digitech Whammy 5 Pitch Shift Pedal Bundle with 3 Patch Cables and Dunlop Variety Pick Pack : Musical Instruments
![Amazon.com: MOOER Pitch Box Guitar Harmonizer Pedal Harmony Pitch Shifter Detune For Electric Guitar Bass True Bypass : Musical Instruments Amazon.com: MOOER Pitch Box Guitar Harmonizer Pedal Harmony Pitch Shifter Detune For Electric Guitar Bass True Bypass : Musical Instruments](https://m.media-amazon.com/images/I/71A7WpfMAKL.jpg)