【Fast and Efficient Heating】The portable car heater features heating and cooling to quickly clean and remove frost, fog and even snow from your windshield, giving you a clear view of your driving. 【Upgraded Car Heater】With air purification, overheat protection and thermal switch, the car heater fan is energy-saving, low power consumption and low noise, and the battery has no open flame, which is safe and reliable. 【Portable and Easy to Use】The mini car heater fan comes with a 360° swivel bracket for easy adjustment and alignment. Just plug it into your car's ignition. 【Wide Range of Uses】The car defroster is perfect for cars, RVs and station wagons. The car heater fan keeps you cool in summer and warm in winter.