Specifications: > designed for hot and cold temperature control > switch position changes temperature environment from hot to cold > ultra-low power consumption > universal voltage -12 vdc or 120 vac(usein your car, truck or home) > large radiator surface for rapid heating and cooling > digital temperature display-c or f > double insulated chest > wheels and pull handle for mobility > two retractable handles and tie down hooks > state of the art electronic systems for long life cycle