Simple operation Plug the heater into your car's 12V cigarette lighter socket and switch it on. It defrosts or defogs windows quickly and conveniently, delivering clear visibility in moments. heat distribution Compact portable heating fan with three dedicated air outlets designed for cars. This setup provides efficient, even heating throughout the cabin while keeping your view unobstructed for safe driving in winter. Dualfunction fan A 2in1 device that can cool in summer and heat in winter. With a simple switch, you can select hot or cold air for yearround use. Effortless defrosting and defogging Specifically engineered to remove frost and fog from windows and windshields, ensuring clear visibility during winter drives. In summer, it also serves as a fan to keep you cool and comfortable. Compact portable design Lightweight, carfocused unit built for easy placement and use with a standard 12V car power outlet. Provides reliable performance when you need fast defrosting, steady cabin warmth, or cooling in hot weather. Use scenarios Winter mornings: quickly defrost and defog the windshield for safe driving, while warming the cabin evenly. Winter driving: maintain comfortable, unobstructed visibility with steady heat distributed throughout the vehicle. Summer days: switch to cooling mode to keep the cabin comfortable without blocking airflow or venting.