Heating and Cooling Function12V car heating fan / automatic car 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 OperationThe 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 UseThe windshield heater defroster uses double-sided adhesive, or you just need to remove it. Plug into your car 12V cigarette lighter socket and turn it on, it starts working quickly.Perfect for heating, cooling, demisting and defrosting car air. 360Rotating and Long CableThe portable car heater has a 360 degree rotatable bracket which can be used for adjustment and easy direction, and a long cable, it can be rotated to blow the place where you want .