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.