It is easy to keep food and drink at the proper temperature no matter where you go with the 27L Koolatron Kool Kaddy hard-sided cooler. It has a hybrid design that not only cools items, it can warm them as well. It boasts a solid-state thermoelectric technology conveniently powered by a 12-volt cord. | Koolatron 12V Electric Cooler/Warmer 34L (36 Qt) Two-Way Design - Grey