1 - Humanized Design: A rotary holder is designed for 360-degree adjustment, convenient and practical. It comes with a rotary holder that can be used for easy directing and adjustment, similar to a car vent, allowing you to set it at your preferred angle.2 - 60 Seconds Heating: This Car Fan Heater can effectively solve the problem of fog and frost covering your car's windshield, obstructing your view. It allows you to hit the road and reach your destination quickly. Moreover, it can heat up the atmosphere inside your car within 60 seconds without waiting for the engine to warm up. Extremely useful during winter.3 - 2 In 1 Modes: Equipped with a hot and cold switch, this car heater is not only ideal for defrosting/demisting windows and windshields but also functions as a cooling fan, providing refreshing airflow during summer. Simply switch between modes to enjoy immediate hot air or cool wind according to your needs.4 - Wide Application: Suitable for all 12V vehicles, including cars, trucks, and recreational vehicles. It can also be used with air conditioners and other commonly used appliances. Perfect for de-fogging/defrosting in winter and keeping cool in summer. Makes a great gift for your family or friends.5 - Safety: This practical heater operates without using gas, relying solely on the energy from the alternator, making it an efficient way to stay warm. It features a cigarette lighter plug design with built-in fuse and automatic power-off protection, ensuring safer use. The user-friendly design is energy-saving with low consumption.