MULTI-PURPOSE - With hot and cold switch. This car heater is not only ideal for defrosting/demisting windowwindscreens.But also can be used as a cooling fan to give you wind in the summer.You just need to change the switch, then the hot air or cool wind will come out immediately as your needs.INTELLIGENT DESIGN - Compact size, portable and convenient to install. A rotary holder is designed for free adjustment,convenient and practical. Rotary holder which can be used for adjustment and easy directing just like a car vent, so you can adjust it to your preferred angle.It boasts 3 main air outlets, the base can be installed with our double-sided adhesive, you can fix the heater in your favorite position, which is convenient and comfortable to use.EASYEFFICIENT - Very convenient and easy to use!!! Just plug and play, plug it into your car's cigarette lighter socket and switch to heat or fan. Instant heating, automatic overheat protect. You can heat the atmosphere of your car without having to wait for the engine to warm within 60 seconds. Effectively allows you to defrost or demist your window quickly so you can get on the road and get to your destination.SAFETY - This practical heater does not use gas, only the energy from the alternator making it the most efficient way to stay warm. Using cigarette lighter plug design, built-in fuse, automatic power-off protection, anti-voltage, safer use.User-friendly design which is energy-saving with low consumption.WIDE APPLICATION - Widely used at car, truck, vehicle, air conditioner and other commonly used appliances.Suitable for all 12V vehicles in the car, camping and travel de-fogging/defrosting in the winter and Keeping cool in summer. Very suitable as a gift for your family or friends.