The Roland CO-MIXER PRO is a compact mixer with microphone input and line output. - Model Name: CO-MIXER PRO - Brand: Roland - Input Terminals: Microphone Input - Output Terminals: Line Output - Power Supply: USB Power This item is unused, but does not have a box. Only the items in the photos are included. I intended to use it, but never got the chance. I am offering it for sale in the hopes that someone will use it. Thank you for looking.