Auto heater has high thermal conversion rate, fast heating and slow aging. high thermal efficiency and durable conversion. The portable heater can be positioned anywhere in your vehicle. You can fix the car fan heater on the anti-slip pad or with double-sided tape. Note: This product is a demister, not intended to heat your entire vehicle. Heating and Cooling Function: Windshield dehumidifier can quickly eliminate windshield fog or frost by heating the air. The car heater can also be used as a fan to cool your car in summer, keep you cool in summer and warm in winter. Easy to Install: Just plug it into the car's cigarette lighter socket and switch it on heating or fan (make sure your car has 12V/24V cigarette lighter socket). Suitable for all 12V/24V vehicles in the car, camping and travel defog or defrost. Wide Application: Electric car heater suitable for winter car, camping, travel and warmth. Portable and efficient, it can be heated quickly and easily. It warms your winter so you can travel to your destination safely and comfortably. Features: 1. Car heater Fan heater filters the cold air in the car to form a thermal air wall, which raises the temperature in the car evenly and has a comfortable constant temperature. 2. Car heater and cooler dual-speed heating and cooling design, which can be adjusted at will to meet daily needs. 3. With 360 degree rotatable base, you can adjust the direction of warm air with ease. 4. Fast heatingWith a high-performance fan, you can quickly heat the air without waiting for the engine to warm up. Save time and effort by using a car generator to run the heater instead of gas. 5. The car heater can be used not only as a heater, but also as a car defogger. Scope of delivery: 1 * Car Heater how to use 1. Start your car. 2. Plug it into your car cigarette lighter socket. 3. Set the heating mode. 4. Wait 30 seconds and warm wind will blow. A notice: The continuous working time of the fan should be no more than 10 minutes. The plug can be very hot after a long period of work. If it stops working, please wait a few minutes for it to cool down, and then you can pull out the fan.