This is a Providence junction box tuner with a built-in junction box function. The switch also allows you to turn the manufacturer's original buffer, the Vitalizer, on and off. It is the first-edition metallic gray color. There are some scratches, but it has been used without any particular problems. The following is an AI-generated description: Junction box with high-precision tuning function. - Brand: Providence - Model Name: SYSTEM TUNER - Type: Junction Box - Function: Tuning function - Connectors: IN/OUT terminals Thank you for viewing.