12volt electrical food cooler/warmer that plugs into 12v cigarette lighter socket. Can be set to store contents several degrees below ambient temperature or several degrees above ambient. External dimensions approx 12in high x 13in wide x 9in deep (insulation approx 1.5inches). Complete with 240v ac to 12v dc transformer for pre-heating/cooling and a cable to connect to 12v cigarette lighter socket. In original box with instructions printed on the outside.