Andoer M5 Mini Delay Electric Guitar Effect Pedal True Bypass Warm, vintage delay sound.Delay Time: 25ms-600ms True bypass: minimize tone loss and get more control of your pedal. Light-weight and portable, easy to carry along. Aluminum alloy housing, sturdy and durable. LED indicator shows the working state. 3 adjustable knobs: Time, Feedback, Echo Time: Adjust the delay time. Feedback: Adjust the feedback of delay effects. Effect Level knob: Adjust the level of delay effects.