3 Effects Knobs and 1 Switch are accurate and highly sensitive. The Range of Detune Mode is: -25/-20/-15/-10/-5/0/+5/+10/+15/+20/+25 cents. Up: Outputs a precise polyphonic pitch shifting voice. Detune: Slightly shifts the pitch and mixes it back with the original signal to create a chorus-like effect, adding a spacious sound. Down: Shifts the pitch and mixes it back with the original signal to create a rich harmonic voice. Harmonizer-Pitch creates precise polyphonic pitch shifting with 44.1k 24-bit sampling, 32-bit true floating point processing, and timbre sound pedal storage. 2 Octave Pitch Range with 16 optional parameters. Input: 1/4 inch monaural jack (impedance: 470k Ohms). Output: 1/4 inch monaural jack (impedance: 100 Ohms). Power Supply: 9V DC adapter (center negative plug). Current Draw: 128 mA. Dimensions: 95mm (D) x 45mm (W) x 53mm (H). Weight: 278g (with box). Color: As shown. Material: Plastic + Metal. Note: This pedal cannot be powered by batteries. A 9V DC power supply with center negative plug is required. Package Contents: 1 x Harmonizer Pedal. Only the above package content is included; other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture to appear slightly different from the real thing. Measurement may vary by +/- 1-3cm.