Professional algorithm delivers clear and clean sound. Precise polyphonic pitch shifting with DRY and WET sound separated output controls. 9 types of pitch selection with 1 octave pitch range for rich harmony effects. Features true bypass switch and LED indicator light for easy operation. Compact design with zinc alloy shell, lightweight, stylish, and portable. Input: 1/4 inch monaural jack (impedance: 2.2M Ohms) Output: 1/4 inch monaural jack (impedance: 10K Ohms) Power Supply: 9V power adapter (not included) Working Current: 5mA (9V) Item Weight: 225g / 7.9oz Color: Blue Material: Metal Size: 9 x 4 x 3.5cm / 3.5 x 1.6 x 1.4in Package Contents: 1 x Guitar Effect Pedal Note: Light reflection and different displays may cause slight color variation between the item in the picture and the actual product. Measurement may vary by +/- 1-3cm.