Used Donner harmonic square Effect Pedal

The used Donner Harmonic Square Effect Pedal is in great condition and delivers versatile pitch shifting with 7 modes including Octave, Detune, and Pitch Shift. It features a true bypass design for pure signal, 3 control knobs for precise harmony adjustment, and operates on standard 9V DC power. Compact and durable, this pedal offers clean tracking and smooth tone, making it perfect for creative guitarists seeking layered effects without sacrificing pedalboard space.