Recently, with the rapid spread of mobile phones, various harmful effects have been pointed out. People are worried that using mobile phones in public places such as hospitals, cinemas, lecture halls, libraries, etc. will destroy the quiet environment and affect precision equipment. In addition, unexpected problems such as cheating at school have occurred. Problems such as obstructing instructional courses and secretly using cell phones to play during classes have become increasingly serious. So by introducing a wifi jammer, you can make your phone unusable in the classroom and focus on the lesson.
Choosing a WiFi signal jammer is easy. It only takes you 10 to 20 minutes to find a blocking device that meets your budget and needs. Many people choose a small portable jammer because it can be used in buses, restaurants and other public places, and it is very convenient to carry. If you buy a product that interferes with this signal, another issue to be aware of is battery life. If you plan to use the WIFI signal jammers for a long time, it is best to buy a high-capacity, long-term WiFi signal blocking product.
The Radio Law states: "Radio waves are electromagnetic waves with a frequency below 3 million MHz." Here, the interference frequency is the number of wave vibrations per second, and the unit is Hz (hertz). When a current flows through a conductor such as a metal, radio waves are generated, so that magnetic and electric fields are alternately connected and propagate in space, so that a wireless jammer can be used to enable the transmitter, receiver and antenna to communicate wirelessly.