Don't want your neighbor to steal your wifi? Wallpaper helps you.

Many people who have used routers know that if the settings are not good or the next door has a computer master, the experience of being stolen WiFi is very depressing. Not only slow down their own speed, there will be a variety of small problems. French researchers have recently invented a new wallpaper that can block WiFi signals, allowing it to search the WiFi signal in its own room without blocking other signals. WiFi wallpaper appearance This wallpaper has a silver-sprayed crystal (silver crystal) that blocks WiFi signals but does not block your cell phone signal or other remote control signals. If you put this wallpaper on your wall, you won't be able to use it even if your neighbors have all the means, because you can't find your own WiFi signal at all. Of course, if you don't want someone to steal WiFi, you can set up a password for yourself without wiring. However, sometimes this method does not necessarily play a role, so this new invention is very useful.