Xiao Xin Air 14 20 19 notebook computer has a touch screen function, which can be operated with fingers or a stylus. If your computer is the same version and the touch screen function is turned on, you can directly operate on the screen with your fingers, such as sliding, clicking, zooming and so on. If you need more accurate operation, you can use a special stylus to operate, so that you can draw, write and sign more accurately. Usually, the stylus needs to be purchased extra, which is not included in the computer accessories.