What is a wifi jammer?

Our company's wireless network is often damaged, which will cause property damage to the company, how can I protect it? Can a wifi signal blocker stop it?

Topsignaljammer  2022.3

The current wifi signal jammer are all frequency bands, which can block all 2.4G and 5.8G WIFI signals.

After the device is turned on, the mobile phone cannot search for its own WIFI signal soon, and it is impossible to connect to use it.

If you want to crack it, you can only install a wireless AP, which is a relatively powerful WIFI, to fight it.