Its a system that heats up the front and the rear glass of the auto but that can work also like a sun protection system. This system helps to prevent the formation of ice on the front and the rear glass of auto. Very often the creation of ice on the cars glass is really annoying so a system that prevent it (through a heating panel that works like a thermal blanket in close contact with the glass of the car) can be really helpful. This system is put inside the car and is reloaded attaching it to the power supply of the car or socket at home . Furthermore, the heating panel possesses a system for regulating the temperature and the heating time.
Also the panel can work like a sun protection system.
The idea was licensed to Audi.