These products are mainly used for indoor shelves in supermarkets and shopping malls, where the LED shelf displays play promotional advertisement videos and product prices. Compact design can realize seamless splicing, unit board to unit board splicing tends to be seamless, can be used for cell phone 4G/WIFI control, easy maintenance and installation. Especially Muchhub’s has a fully wireless modular design inside. Its modules and HUB are hard-wired, power supply installation is also hard-wired, and even the connection between the screen and the screen is hard-wired with a special connector. This brings great convenience to the customer’s installation and use, just one push and the screen will be connected.