PLEASE NOTE -- Vehicle voltage should be around 12 amps for the heater to work properly, but if the voltage is much less than 12 amps, the heater may stop working.If you have any questions when using this car heater,please feel free to contact us,we will try our best to help you solve the problem. 360° Rotating Base: It comes with a rotating bracket that can be adjusted and easily orientated,so you can adjust it to the angle you like. The base can be installed with our double-sided tape, and you can fix the heater in your favorite position,bring the warmth in any direction you want. Easy to Install and Use: 90° Handle to Adjust Portable Car Heater fans.when the window glass is heavily fogged,hold this car heater to blow on the foggy,then spot to remove the fog.It is designed to quickly clear frost and even remove snow from your vehicle windshield,keeping your vision clear while driving. 2 in 1 Heater Fan: The car heater adopts high-quality ABS material and ceramic PTC heating technology,which is more efficient and quieter.Two Adjustable wind mode:HEAT is hot air,30 seconds quick heating, increased car space temperature. FAN is cold air,Circulates the air inside the car to remove the peculiar smell.OFF is closed. High Power & Fast Heating: Upgraded car heater,200W increased power,increased air temperature,It can quickly clean the frost,demisting/defrosting on the car,windshield,side window and rear window,and provide a clear view for your driving.