Professional algorithm of PITCH, delivers clear and clean sound. Precise polyphonic pitch shifting, comes with DRY and WET sound separated output knobs. 9 types of pitch for selection with 1 Oct pitch range, presents rich harmony effect. Equipped with true bypass switch and LED-indicator light, more convenient to use. Compact body with zinc alloy shell, slim, stylish and portable. Input:1/4Inch Monaural Jack (impedance:2.2M Ohms) Output:1/4Inch Monaural Jack (impedance:10K Ohms) Power Supply:9V Power Adapter (not included) Working Current:5mA(9V) Item Weight:225g/7.9oz Colour:Blue Material:Metal Size:9x4x3.5cm/3.5x1.6x1.4in Package Contents: 1 x Guitar Effect Pedal Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.