Compact design with major thermoelectric cooling and warming power: Perfectly sized to bring a hearty lunch to work, Koolatron's 9L Traveller III is the ultimate personal cool box. With a durable hard plastic exterior and convenient shoulder strap, plus efficient thermoelectric cooling or warming, your lunch and snacks will be ready to eat whenever and wherever you are. Simply plug the included power cord into your vehicle's 12V receptacle for reliable cooling with no ice or ice packs taking up valuable space and add Koolatron's AC adapter (sold separately) to seamlessly transfer from your vehicle to indoors. Koolatron Europe