This is a digital delay effects unit that is now discontinued, offering a variety of delay effects. - Model Name: DIGIDELAY - Type: Digital Delay - Controls: LEVEL, REPEATS, TIME, MODE - Input/Output: OUT 1 (MONO), OUT 2 - Series: X-SERIES - Power: Battery or AC Adapter - LED Indicator: Red LED Thank you for viewing. This is a Digitech digital delay. The box and manual are not included. Sound output is confirmed, but please understand that I am an amateur. This is a used item, so there may be some dirt, etc. Please refrain from purchasing if you are sensitive to such things or are seeking perfection. Sold as-is, no returns accepted.