【7l truck cooler】this 7l plug in cooler can store 6 bottles of 600ml water or 10 bottles of 330ml cola, providing you with enough space to store food and snacks. 【electric cooler and warmer】the electric car cooler cools up to 41 degree fahrenheit at room temperature; heats up to 145 degree fahrenheit. make warm/cold food available at your hand. 【energy saving and low noise】this electric cooler is specially built with an energy efficient thermoelectric cooling system with no compressor, minimizing the vibration effect and noise. the low noise car fridge operates quietly so that you won't be irritated by noise. 【easy to use】 the car refrigerator is easy to use, plug and play, just plug into the 12v cigarette lighter socket in your car. you can store fresh food and other cold items, like cheese, drinks, vegetables, dairy