Used Donner Harmonic Square Effect Pedal

Used Donner Harmonic Square Effect Pedal in great condition, offering exceptional pitch shifting and harmony effects in a compact design. Features include 7 modes (up, down, detune, and more), 3-way toggle for fine tuning, and true bypass for clear signal tone. With its rugged aluminum alloy build and responsive footswitch, this pedal delivers professional-quality tone shaping for guitarists seeking creative expression and sonic versatility in a pedalboard-friendly format. Powered by standard 9V DC.