The Tristar KB-7540 Cool Box is very spacious with a volume of 40 litres so you can bring everything you will need. You can easily take it with you as a trolley, thanks to the wheels and special handle. This cooler works by means of a thermoelectric cooling system. The Tristar cool box is very spacious with a volume of 40 litres, so you can keep cool all different kinds of refreshments. Taking the cooler with you will not be hindered by its spacious size because you can drive it like a trolley. Moreover, another advantage of the KB-7540 cool box is the possibility to heat, so you are also able to bring hot meals with you. The KB-7540 cool box is thermoelectric and cools up to 18 C below ambient temperature, but also heats up to 65 C. Furthermore, the cool box can be used in the car on 12V and also on electricity on 230V. You will not even have to worry about your energy bill, because the cooler consumes little power and thus has energy label A++. This Tristar cool box is very convenient to use, thanks to the practical design. Not only is the cooler provided with wheels, but also with integrated handles, power cord storage and a detachable lid. Altogether, the KB-7540 is perfect to use when you are on a holiday but also at home or on the road. Very spacious cool box with a volume of 40 litres Cools up to 18 C below ambient temperature Heats up to 65 C Thermoelectric Perfect to take with you thanks to the trolley design Carry handle Thermoelectric cooling system with 12V plug and 230V plug Practical design with detachable lid Long power cord 1.7m Power cord storage compartment Suitable for 2L bottles Anthracite in colour Noise level(dB): 35 Energy class: A++ Dimensions(cm) 39 x 56 x 41.5 Inner dimensions(cm): 30.1 x 45.1 x 30.3 Annual energy consumption(kWh/annum): 75 Cooling and warming Yes Weight(kg): 6.8 Wattage(W): 40/58 W Power(W): 58 Voltage(V): 12/220-240 V Energy category: 10 Frequency(Hz) 50 / 60