Nowadays, communication technology is also developing rapidly, narrowing the distance between people, but at the same time, it also brings great difficulties to communication security and confidentiality. Some mobile phone hacking, leakage of secrets, cheating in the examination room, and major explosions at gas stations. What is more frightening is that people serving sentences in prisons can command their external criminal associates to continue to engage in illegal activities from their restricted prison rooms by using mobile phones. The degree and seriousness of their harm have attracted great attention from all localities.

The wireless jammer is a product developed according to the needs of the market. It uses advanced shielding technology and is mainly used in universities, conference rooms and prisons. Within a certain range, it releases a communication interference signal that can completely cover and shield the mobile phone. All electronic communication devices such as mobile phones within the working range of wireless jammers will be in a non network state. Since communication equipment now obtains external information by means of signal transmission, the process of sending and receiving signals is indispensable, and the wireless jammer completely interferes with this wireless signal, so the communication equipment can not be used any more. So as to achieve the purpose of compulsory prohibition of mobile phones, completely solve the various hazards brought by mobile phones, and make people enjoy the convenience brought by high technology without disturbing the surrounding environment.