led car display manual led car display manualCar of the screen instructionsA. Functionala. ... 250 characters per messageb. There are three scrolling speed. display letters, numbers, symbols, etc.ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789 !@#$%^&*()_+[]{}= \ /<>,.'"?B ... key, the screen will flicker box, and then use the remote control to select input "A ... Z , a ... z ,!@#$%^&*() ...