Quick defrost and defog the car windows: The portable car heater defroster operates on 12V/24V, is made of quality ABS material, and plugs into the car cigarette lighter socket. It quickly and effectively clears frost and fog from windows and windshields. 2in1 operation with adjustable levels: Two modes meet different needs. The fan mode delivers cold air, the heater mode delivers hot air. It defogs and clears windows, and can also blow roomtemperature air to accelerate air circulation inside the vehicle. 360° rotatable holder for precise airflow: The heater includes a 360° rotary holder for flexible direction. Adjust the unit to direct warm or cool air exactly where you want it. Fast heating for clear visibility: Heats the incoming air quickly, within a few minutes, helping to keep the windshield clear and prevent fog or frost from obscuring your view. Practical use scenarios: Cold mornings: Quickly defrost and defog the windshield before driving. Humid or foggy conditions: Clear the windshield to maintain visibility. Cabin comfort and ventilation: Use the cold or roomtemperature air to improve air circulation inside the car.