[ Octave Guitar Pedal ] With 7 shift types and 3 tone mode toggles, Harmonic Square guitar pedal gives you 21 options of semitonal, octave and detune sounds.

[ 3 Tone Modes ] Harmonic Square octave pedal has 3 tone modes including Sharp, Flat, and Detune. Sharp: Pitch up. Detune: Adjustable pitch signal shifted by 10 cents. Flat: Pitch down.

[ 2 Knob ] WET Knob: Adjust the harmonic signal level. DRY Knob: Adjust the dry signal level.

[ Buit for Last ] Whole Aluminium-alloy classic, stable and strong. LED indicator shows the working state.

[ True Bypass Guitar Pedal ] Digital circuit design, true bypass provides transparent tone. DC 9V Adapter power supply.(Not included)