[Junk Item] Purchased used about two years ago. Used only in a studio, but suddenly stopped producing any sound. If anyone is able to repair it, please consider purchasing. Box, manual, and batteries are not included. The item is the main unit only. - Model Name: DD-3 - Type: Digital Delay - Connection Terminals: INPUT, OUTPUT, DIRECT OUT - Adjustment Knobs: CHECK, MODE, TIME, FEEDBACK, LEVEL - Power: AA batteries or AC adapter - Condition: Used (scratches on the back) Thank you for viewing.