MULTIPURPOSE- With hot/cold switch. This car heater is not only ideal for defrosting/defogging windows and windscreens. But it can also be used as a cooling fan to give you wind in the summer. You just need to change the switch and then hot or cold air will come out instantly according to your needs.[Simple and Efficient] - Very convenient and easy to use!!! Simply plug and play, plug it into your car's cigarette lighter socket and switch to heat or fan. Instant heating and automatic overheat protection. You can heat your car's atmosphere without having to wait for the engine to warm up in 60 seconds. Effectively allows you to quickly defrost or defog windows so you can get on the road and get to your destination. [SAFETY] - This practical heater uses no gas and only uses energy from the alternator, making it the most efficient way to keep your car warm. Designed with cigarette lighter plug, built-in fuse, automatic power-off protection, anti-voltage, safer to use. Humanised design, energy saving and low consumption.[Intelligent Design] - Compact size, portable, easy to install. The rotating bracket design is freely adjustable, convenient and practical. It comes with a swivel bracket for adjustment and easy guidance, just like a car vent, so you can adjust it to your preferred angle. It has 3 main air vents and the base can be fitted with our double sided adhesive so you can fix the heater in your preferred position for easy and comfortable use.[WIDE APPLICATIONS] - Widely used in cars, trucks, vehicles, air conditioners and other common appliances. Suitable for all 12V vehicles in the car, camping and travelling, defogging/defrosting in winter and keeping cool in summer. Must be charged with original lighter. Perfect as a gift for your family or friends.