Versatile functionality: This 12V car heater fan provides both heating and cooling to quickly clear frost, fog, and mist from car windows, including windshields, side windows, and rear windows, for visibility while driving. Adjustable orientation: It features a 360degree rotating bracket for easy adjustment of angle and direction. It can be securely installed on antislip pads or with doublesided tape to ensure warm or cool air reaches the desired area. Rapid heating: The unit warms the air within minutes, delivering comfort in cold weather and helping maintain a clear windshield by preventing fog or frost from obstructing your view. Robust defroster heater: The upgraded 12V car heater is designed for efficient defogging and defrosting, enhancing driving safety. It is constructed from durable ABS materials, resistant to damage, offers instant heating, and includes automatic overheat protection for a reliable user experience. Practical use scenarios: Winter mornings: quickly defog and defrost windows to ensure clear visibility before and during driving. Coldweather driving or long trips: maintain a comfortable cabin environment and rapidly clear windows as needed. Hot days: use the cooling function to quickly cool the cockpit and provide relief from heat. Key attributes: Function: heating and cooling with defog/defrost capabilities. Compatibility and installation: 12V vehicle power supply; mountable with antislip pads or doublesided tape; 360degree adjustable bracket. Material: durable ABS construction. Performance: rapid air heating, effective defogging/defrosting, automatic overheat protection.