A toll box is an electronic device that is installed in your vehicle to automatically calculate and transmit toll charges. With your own toll box, you can manage your toll charges efficiently and conveniently. It also allows you to keep track of your toll charges at all times. You can see when and how often you have used which roads and how much you have had to pay for them. This makes it easier to track and plan the costs incurred. If used regularly, a toll box is a good way to save time and effort.