2 in 1 Heater and Cooler:Portable car heater is available all year round. There are two power supply options, natural air or warm air . As long as the switch is replaced, cold and hot air will be discharged immediately according to your needs. The heater guides heat to the front,top and around,providing you with a clear view,making your driving warmer and safer. Safety and Low Energy:High quality cables are used, which are durable, long service life, energy saving and consumption reducing. Cigarette lighter plug design, built-in fuse, with automatic heating, overheating protection and humanized design, energy saving, low consumption, low noise. Rotating and Handheld Design:The windshield defroster is designed with a 180 degree rotating base, which is equipped with double sided tape. With 3 air outlets, you can adjust the heater to let the warm air blow to the place you want. The ergonomic handheld design allows you to carry it more quickly and conveniently. Easy to Use:The car heater is powered by the 12V cigarette lighter port. Just connect it to the cigarette socket of the car, and then switch to the heater or fan. It can quickly and effectively defrost or defogger the windows. The powerful windshield defroster heats the air quickly without waiting for the engine to warm up. Applicable Vehicles:Suitable for most cars. The car heater is suitable for demisting & defrosting inside all 12V vehicles in winter. This car heater is an ideal choice for defrosting or defogging windows and windshields, and is very suitable for common electrical appliances such as cars, trucks, cars, air conditioners, etc. This product is a demister, not used to heat the whole vehicle.