?DUAL MODES: ❄Cooling & ?Heating Supported, While refrigeration, it is able to be 15-25℃ lower than the room temperature, heat up to 60℃±5℃ in heating mode, Set to warm up to 65°C or choose to cool to 5°C, ideal for drinks, snacks and meals when camping or outing ?WORKING PRINCIPLE: The cooler and warmer car fridge using electronic Semiconductor refrigeration system cooling principle instead of mechanical compression refrigeration compressor is energy saving and Eco-friendly, non-pollution, long life, low noise and consumption ?EASY TO OPERATE: Designed to fit in the back seat of your car or floor, it is convenient to plug into the car cigarette lighter for power supply. Flip top cover is convenient to put in or take out stuffs.