... message display, P3.75 pixel, lindoor, PC control, easy to use and install, you can set play mode, color and speed Program ... 200 Fonts available including Size, Bold, Italic and UnderlineUp to 14 display modes SCROLL display mode of large continuous ... to Serial Adaptor - OptionalPhotos Moving message display, P3.75 indoor usage, Red color, PC control, play mode and speed selected, easy to install ...