Features1. With hot and cold switch. This car heater is not only ideal for defrosting/demisting window&windscreens.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.2. Compact size, portable and convenient to install. A rotary holder is designed for free adjustment,convenient and practical. It comes with a 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.3. This heater does not use gas, only the energy from the alternator making it the most efficient way to stay warm. With this car heater demister to clean the frost, fog, mist on your vehicle's windshield quickly, heat the atmosphere of your car, and you need not waiting in the cold weather, ensure your driving safety.4. This auto heater made with ABS material which is not breaks easy. With its great design and quality cable, there are no fragile parts, Built-in fuse, automatic power failure protection.Specifications:Material: ABSProduct size: about 12*10*7.2cm /4.72*3.93*2.83inchCord length: about 110cm/43.31inchSpecification: 12V/24VFunction: defrost/defog/natural wind/warm windPackage Includes:1 X Car Heater