The rapid development of mobile communication has brought great convenience to people's work and life, but the side effects caused by mobile phones have become increasingly apparent. The insecure factors of mobile phones are mainly reflected in the fact that in important secret-related places such as agencies, factories, enterprises and institutions, if you intentionally or unintentionally dial a mobile phone or forget to turn it off, a leak may occur at any time. In some important confidential occasions or meetings, the use of mobile phones is prohibited. At this time, we will use the cell phone jammer, which is the latest green new information security product developed using modern high-tech. The principle is similar to that of the communication signal source. A fan-shaped shielded space is customized according to the power of the jammer, and the normal wireless connection between the signal source and the mobile phone is cut off, so that the mobile phone in this space cannot be received or called. To achieve the purpose of compulsory banning of mobile phones, so as to ensure the safety and confidentiality of the scene. The appearance of the equipment is simple and elegant, solemn and beautiful; efficient and intelligent cooling and heat dissipation system, stable performance, safe and reliable; built-in professional directional antenna, no need to connect an external antenna, it can work directly from the mains power; good electromagnetic compatibility, integrated design of the whole machine, installation Convenient and simple to use and manage.