... PP 7.5 L 12V dc fridge mini car fridge hot cold car cooler Main features for Normal type: Volume7 ... button,put the one side of the electric wire in the car fridge socket,another side to be putted ... : DC12V,the power source is controlled by the car keyKey on: engine start,Key off: flameout.Attention ... :when the refrigerator working,the car must be motored to avoid the damage of ...