I've heard of these devices before. The ability to bypass RFID systems has been around for a while. Now though, it seems as though it has gone viral on Tic Tok.
Just a heads up to all of your schools that use electronic swipe, there is now a device being thrown around Tic Tok which shows people (and kids) using this device to bypass electronic access.
Check out the below video and article.
As always, be safe.