I purchased this item on Mercari and used it several times before storing it. Operation has been confirmed. (I have checked the effects, but the deterioration of sound quality due to aging is unknown.) This chorus effector allows for a wide range of sound creation with its versatile controls. There are no included accessories such as the box or instruction manual. - Model Name: CH-1 - Type: Chorus Effector - Output Terminals: OUTPUT A (MONO), OUTPUT B - Control Knobs: E.LEVEL, EQ, RATE, DEPTH - Accessories: None - Color: Blue Made in Taiwan There are scratches and paint剥がれ. Please understand that this is a used item before purchasing. Thank you.