Traveling with food and drinks is super easy with the Koolatron Kargo Wheeler 12V Plug-In Cooler featuring wheels and a thermoelectric cooling unit. The 31L capacity cooler plugs into your car's 12V DC socket to keep your snacks and drinks cool no matter how long your trip. With the built-in wheels, the fully-packed cooler travels easily outside of the car as well. The split-lid design allows for easy access to the contents of the cooler, even if there are a few things packed on top!