Pedal Features: Providing 30-340ms delay time, can produce rich delay effect. With 4 functional knobs to adjust the performance of the delay effect. True bypass footswitch for switching between delay effect and bypass status. LED light for indicating effects or bypass status. Full metal shell and compact size, durable and portable. Comes with a small pouch for convenient storage and carry. Functional Knobs: --LEVEL knob: adjust the level of overall output --MIX knob: adjust the mix between the dry signal and the effect sound --REPEAT knob: set the amount of delay returned to the input of the delay time --TIME knob: adjust the delay time Specifications: Input: 1/4'' monaural Jack(impedance 1M Ohms) Output: 1/4'' monaural Jack (impedance 100K Ohms) Current Draw: 30mA Power Supply: DC 9V AC adapter (center minus plug) Item Size: 9.5 * 4 * 3.5cm / 3.7 * 1.6 * 1.4in Item Weight: 140g / 4.9oz Note: Power Adapter is not included. Please use the power adapter whose polarity is positive pole outside and negative pole inside. Otherwise, the product may not work properly. Package List: 1 * Effect Pedal 1 * User Manual (English & Chinese) 1 * Pouch