3pcs Rayhong Defrosting Device For Car Front Windscreen Defrosting And Defogging Portable Heating Heater For Cars Our deicer. It can efficiently remove snow on the car， produce water molecules with similar vibration and rotation frequencies in the environment， affect their physical properties， so that they can still actively vibrate at the freezing point， so as to achieve the phenomenon of water not freezing. Its use is very simple: first just put the instrument in a safe and stable position in the car， and then the energy material released by the microwave inside the instrument can melt snow and ice. After use， it helps to reduce the snow and frost on the car in winter， so that the car is not easy to freeze inside and outside， and extend the service life of the car.?