For sale due to equipment reorganization. This is a clone effect pedal of the DUMBOLOID, featuring four knobs. I compared it with the original pedal, and it has a high degree of reproduction. The power supply is located on the bottom right. It's characterized by the sticky sound of the Dumble type and can also be used as a booster. - Model Name: DUMBOLOID - Number of Knobs: 4 - Switch Type: Footswitch - Bottom Material: Aluminum - Connection Terminals: 1/4 inch jack Thank you for viewing. king gnu Daiki Tsuneta Shin's Music