SunPass is an electronic toll collection system used in the state of Florida. It allows drivers to pay tolls automatically without stopping at toll booths. Users can purchase a SunPass transponder, which is a small device that attaches to the vehicle's windshield. When a vehicle passes through a toll plaza, the transponder communicates with the toll system, deducting the toll amount from the user's prepaid account. The SunPass program offers convenience and savings, as it typically provides lower toll rates compared to cash payments. It is widely accepted on most toll roads, bridges, and express lanes throughout Florida, making it a popular choice for frequent travelers in the region.