With the rapid development of modern communication, the communication between people is getting closer and closer. However, while communication technology brings convenience to people, it also brings new challenges to the security and confidentiality of communication. Before that, there have been incidents of cell phone tapping, intelligence, cheating in examination rooms, major explosions in gas stations, and criminals in prisons using mobile phones to order external associates to continue to engage in illegal activities.

High power frequency jammer is a product developed according to the market demand and adopts special advanced technology. If the frequency jammer is in the working state, it can form a shielding magnetic field in the designated area, so that the mobile phone can't answer and make calls, so as to achieve the purpose of shielding the mobile phone. The high-power frequency jammer solves some dangers brought by mobile phones, so that people not only enjoy the convenience brought by high technology, but also completely eliminate the possibility of prisoners using mobile phones for communication.

Each place can use high-power frequency jammer according to its own actual situation. Its effective shielding range will be different in different occasions. The shielding range of different mobile phones in the same site is not necessarily the same. Therefore, the use and management of the installation of frequency jammers requires the attention of relevant functional departments, which should not only ensure that the frequency jammers meet their own needs and are safe, but also do not affect the normal use of public mobile communications.