Heating and Cooling FunctionCar heating fan / 12V car automatic cooling fan which can provide natural wind and heating wind, has fast heating and fast cooling function 2 in 1, can quickly remove fog or frost from the car windshield by heating the air. Efficient and Quiet Operation The car defroster heater fan can remove fog quickly, heat up quickly in 30 seconds or cool quickly and provide high power air blowing. And this car defogger works quietly without noise. Save Energy Output: max.150W. working voltage: 12V direct current. Power supply: 12V car cigarette lighter connector. Easy to use The windshield heater defroster uses double-sided adhesive, or just plug it in into your car 12V cigarette lighter socket and turn it on, it starts working quickly.Perfect for heating, cooling, demisting and defrosting car air. Cable 360Rotating and LongThe portable car heater has a 360 degree rotating bracket which can be used for easy adjustment and steering, and a long cable (about 140cm), it can be rotated to blow the place wherever you want.