According to the product page, the Franklin Digital Cooler uses "a tiny NASA microchip" that allows the device to go from "hot to freezing cold in a matter of minutes." So, theoretically, you can keep you hot dishes hot and your cold dishes cold when traveling. There is even an LED thermometer and thermostat that allows the user to set the exact temperature, and a car adapter kit to keep things fresh—even on long drives. Fits snuggly in the racer reachable travel space of any trophy, ranger or stock truck. Available for $49.95.