LED display common name of new technology signboards in this displays customers can change the content often. This kind of LED scrolling board can be fixed into the outdoor it is completely weatherproof. This is the working principle of LED matrix technology LED display boards inbuilt with a small microcontroller board. This motherboard has up to 1GB of memory. You can change the content from desktop or mobile. Once change the content save it in 4GB flash drive and insert it in the LED display board USB port.