Often these wifi jammer devices are capable of blocking many types of waves. WiFi, GSM, key/vehicle transmission frequencies, and sometimes even road-controlled radar waves.
These devices look like a kind of walkie-talkie, and in terms of form, they come with one or more antennas and select buttons that allow you to choose the type of waves you want to block. Some are the size of a car key, some are bigger, it all depends on what they do.
For example, some models will provide a timer that allows the signal to be scrambled for a certain number of minutes, and some models will detect the type of wave break in the vicinity in order to know if, for example, a spy microphone or camera is present in your environment.
What are the characteristics? By highlighting you can interfere with your neighbor's WiFi! The detection capability is used as a device that can detect spyware, and the jamming capability is used as an effective way to protect your confidential documents from being leaked.
How does this work
There are multiple possibilities for the signal not working properly. Either you have to be able to use physical means to block the waves, like a reinforced concrete wall of a certain thickness, a lot of water, or a Faraday cage. That is, the signal will not be able to pass the obstacle.
Either the device acting as the receiver must be rendered incapable of receiving the signal. wifi jammer device, or other jammers, are more of a transmitter than anything else. Once set to a jammed frequency, the wifi frequency jammer will transmit as many waves as possible on that frequency, making the original legitimate source signal undetectable and unreceivable.
It's a bit like trying to understand what the other person is saying to you at a concert. This is a somewhat simplistic analogy, but it helps to understand how it works. It is possible to chat without music, but once the band enters the stage and starts playing, the signal between the interlocutor's mouth and ears is disrupted. It is impossible to hear each other because the signal is lost in the middle of the other waves.
