Multi-Function 12V car heater fan with heating and cooling functions. It quickly clears frost, fog, and mist on the windshield, side windows, and rear window, providing a clear view for safe driving and a warmer cabin in cold weather. 2 in 1 Mode with three positions. The control offers FAN (natural wind), HEAT (hot air), and OFF. This unit is suitable for defrosting and defogging car windows and windshields, and it can also blow room-temperature air to accelerate cabin airflow. Humanized design. It features a portable ergonomic handle for easy use in heating or cooling, and a 360° rotation base that can be tilted up and down to direct air where you want it. It is designed to be a reliable partner for your driving journey. Easy to install. Simply connect the portable car heater to the vehicle cigarette lighter socket (12V) and switch to heat or fan. Make sure your car has a 12V lighter port.