Electro Harmonix Nano POG Polyphonic Octave Generator Pedal (Demo by Bill Ruppert)
BOSS SY-200 SYNTHESIZER EFFECTS PEDAL – Advanced BOSS Polyphonic Guitar Synth Technology in a Streamlined 200 Series Pedal for any Guitar or Bass – ...
ALABS ORBITAL Pitch Shifter Pedal for Electric Guitar,Octave Pedal with 9 Shift Types,Harmonic,Analog Dry Through,Momentary operation,True Bypass,True ...