WiFi Deauthers vs Signal Jammers

You might have seen several WiFi jamming devices on Chinese sites such as Aliexpress, Wish, or Alibaba. However, Signal Jammers are very different from WiFi deauthers, since the first one creates a lot of signal interference in the RF spectrum while the other one basically injects forged frames to disconnect the WiFi clients from the WiFi router or access Point.

In a nutshell: A WiFi jammer is a device that creates a lot of random noise to prevent communication on a specific WiFi band or channel (imagine playing music so loud that nobody around could talk to each other).