CS35 Option is a package that includes features such as a monitor backlight, steering wheel controls, power windows, power mirrors, and three-dimensional floor mats. This option adds convenience and functionality to the CS35 model, making driving more comfortable and enjoyable. The monitor backlight provides clear visibility of the display screen, while the steering wheel controls allow for easy access to various functions without taking hands off the wheel. Power windows and mirrors provide added convenience, and the three-dimensional floor mats add a touch of style and protection to the interior of the vehicle.