This is Quadcruise - cruise control unit configured for the Polaris models and variants of these models.The Spray/Accessory power kit is optional. It provides a switched 10amp power outlet controlled either by the operator or automatically by the cruise control. See the brochure for more details. The images show a Auto/Electric shift model without the spray power control and a manual shift model with the spray power control switch (black arrow pointing to the spray control switch).