Feature: 1. Average Duration Delay Effect: Producing an average duration delay effect, adding a sense of space to the sound of the instrument 2. Quick Effect Adjustment: Analog delay effects is simple and easy to use, and provide quick effect adjustment 3. Fully Electronic And Reliable: Electric guitar single block effect pedal is a fully electronic and reliable sound simulator 4. Excellent Performance: Input impedance is 1M Ohm, output impedance is 1K Ohm, this effect pedal come with excellent performance 5. Sturdy And Durable: Analog delay effect pedal use excellent metal material, easy to conduct electricity, shiny, sturdy and durable Specification: Item Type: Analog Delay Effects Material: Metal Color: White Input Impedance: 1M Ohm Output Impedance: 1K Ohm Product Power Supply: 1 x Carbon dry battery 9V 300mAh(built in battery) or DC 9V power adapter(not included). Package List: 1 x Effector1 x User Manual Note: When the plug is inserted into the jack, the power is automatically turned on. When not in use, remove the plug to save battery life.