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 character. Down: Shifts the pitch and mixes it back with the original signal to create a rich harmonic voice. Harmonizer-Pitch provides precise polyphonic pitch shifting with 44.1k 24-bit sampling and 32-bit true floating-point processing, with timbre storage capability. 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; other products are not included. Note: Light reflection and different displays may cause slight color variations between the item in the picture and the actual product. Measurement error allowed is +/- 1-3 cm.