As the mobile phone has the functions of transmitting information, video, recording, etc., it is likely to lead to the leakage of important information of the state and relevant institutions. Many organizations have taken corresponding measures, such as installing mobile jammers to protect their own interests. Well, in some places where information must be kept strictly confidential, such as government agencies, banks, examination centers, and so on. The most frequently contacted place is the examination room. Basically, every school will install mobile jammers to prevent candidates from cheating. During the final and college entrance examinations, as long as the mobile phone enters the shielded area, the signal will not be received or the signal will be very weak. In addition to these places, mobile jammers should also be installed in the gas station. Because gasoline is very volatile and there are many gasoline molecules in the air of the gas station, the sparks generated by open fire or other substances will cause explosion. When we use mobile phones to make calls or send messages, the internal parts of the mobile phones will generate sparks, leading to a fire in the gas station.

The mobile jammer can generate specific electromagnetic signals, which limits the use of mobile phones in the designated shielding area. If the mobile jammer is installed, it can avoid the interference of mobile phone noise, prevent the leakage of secrets and criminal incidents, and more importantly, play a very important role in maintaining national security and protecting people's lives and property.