Heating & Cooling DesignPortable car heater includes two modes of cold air or warm air, no neeHEd to wait to heat up/cool down quickly. The car heater is perfect for defrosting or defrosting windows and windscreens. Safety& DurableThe car heater that plugs into cigarette lighter is made of ABS antioxidant alloy heating wire, with high heat conversion rate, high temperature resistance, fast heating speed and long service lif Skeleton DesignThe car heater's top skeleton design directly contacts the air convection and quickly defogs and defrosts by circulating hot air. Easy InstallationSimply connect the portable car heater to the car cigarette lighter socket and then switch to heating or fan mode to heat and defrost and defog the car. Wide ApplicationPlug in 12V car heater is widely used in cars, trucks and vehicles. Suitable for all 12V vehicles in the car, camping and traveling, defogging/defrosting in winter and keeping cool in summer.