2 in 1 Heating and Cooling Design: This 12V car heater has two modes to choose, natural fan or warm fan, 12V quickly heats and cools the vehicle, removes fog or frost from the car windshield, gives you a clearer driving experience, eliminates car odors, keeps the air fresh, makes you drive safer and more comfortable. High Quality: Upgraded car heater, made of ABS and hard polymer plastic, which is resistant to heat, with the addition of negative oxygen ion generator to ensure rapid heating effect, high quality cable, safe and durable, warm your winter. Rapid heating and good defogging effect：The heating wire used has high heating speed, high resistance to high pressure, fast heating, slow aging, long life, and three seconds of heating, efficient and fast defrosting and defogging, improving the static pressure of the air outlet, improving the air supply distance and heating effect. Easy Installation: Just connect it to your vehicle's cigarette lighter socket (12V) to turn it on and use