This is the BOSS Flanger, BF-3. There are no operational issues, but there are many paint chips and scratches, as it was purchased used. This listing is for the unit only (will be wrapped in bubble wrap). Please understand that this is a used item. - Model Name: BF-3 - Color: Purple - Output Terminals: OUTPUT A, OUTPUT B - Input Terminals: BASS IN, GUITAR IN - Control Knobs: MANUAL, DEPTH, RATE, MODE - Power: 9V battery or AC adapter Type: Electric Guitar Manufacturer: BOSS