This is a SMALL CLONE from ELECTRO HARMONIX. I purchased this used at Hard Off last year. It powers on without issue, but there's a strange sound and some noise when the effect is engaged. *Please note that the box, manual, and conversion jack are not included.* - Model: EH 4600 FULL-CHORUS - Brand: ELECTRO HARMONIX - Function: Chorus effect - Input/Output Terminals: INPUT/OUTPUT terminals - Power: 9V DC Thank you for looking.