This item is over 20 years old. It does not power on, and its functionality has not been tested, so it is being sold as junk. The serial number label is also missing, so it is unknown. Please understand this before purchasing. The following is a product description. The BOSS Blues Driver BD-2 is an effects pedal that provides a rich overdrive sound. - Model Name: Blues Driver BD-2 - Brand: BOSS - Control Knobs: LEVEL, TONE, GAIN - Condition: Used - Output Terminals: OUTPUT - Input Terminals: INPUT Thank you for viewing.