3 controlling knobs and 1 switch are accurate and high sensitive.
Dry knob: Adjust the volume of dry signal.
Wet knob: Adjust the volume of wet signal.
When in Detune mode, the range is: -25/-20/-15/-10/-5/0/+5/+10/+15/+20/+25 cents.
Mode switch: Switch between up, detune and down mode.
Features: Full metal shell, durable and exquisite. 3 controlling knobs and 1 switch are accurate and high sensitive. Dry knob: Adjust the volume of dry signal. Wet knob: Adjust the volume of wet signal. Range knob: Choose the pitch shift range. When in Detune mode, the range is: -25/-20/-15/-10/-5/0/;5/;10/;15/;20/;25 cents. Mode switch: Switch between up, detune and down mode. Output jack: 1/4; mono audio jack for signal output. Input jack: 1/4; mono audio jack for connecting guitar. True bypass footswitch and lever designed to prevent stamping on operation knobs. Specifications: Model: AROMA AHAR-3 Effect: Pitch Shifter Material: Aluminium Alloy Input Impedance: 470K Ohms Output Impedance: 100 Ohms Current Draw: 68 mA  Power supply: AC Adapter 9V DC (not included) Item Size: 9 * 3.8 * 4.8cm / 3.5 * 1.5 * 1.8in Item Weight: 151g / 5.3oz Package Size: 12 * 7 * 6.5cm / 4.7 * 2.7 * 2.5in Package Weight: 245g / 8.6oz Note: Please use the 9V power adapter whose polarity is positive pole outside and negative pole inside. Otherwise, the product may not work properly. Package List: 1 * Guitar Effect Pedal 2 * Adhesive Tape 1 * User Manual (English ; Chinese) 1 * Hardcover Box