Polyphonic harmonizer pedal

Mooer Pitch Box Polyphonic Pitch Shifter

Polyphonic pitch shifter pedal for guitar, creates harmonies and shifts pitches with multiple effects.

Electro-Harmonix POG 2 Polyphonic Octave Generator Effect Pedal

Polyphonic octave generator effect pedal, creating rich soundscapes by adding one octave up and two octaves down to your original signal.

Electro-Harmonix Pitch Fork Plus Polyphonic Pitch Shifter Effect Pedal

Electro-Harmonix Superego Synth Engine Guitar Effects Pedal