In the examination room and other environments that need to ensure signal security, mobile phone jammers become crucial. In the environment of more and more shielded equipment, the problem that the equipment can not be effectively centralized controlled has led to a large number of use problems. The core problem caused by the failure of centralized control of shielding equipment ① The switch of each equipment means a use of manpower. Fifty rooms need to be opened and closed at the same time, which requires 50 people to operate together.

② Traditional signal shielding has no design of real-time monitoring. The user cannot know whether each device is working normally in real time, and there is no real-time display alarm in case of problems.

We thought about how to solve these problems correctly and perfectly. Finally, we developed a mobile phone jammer that can be networked and widely used. Mobile phone jammer is a solution to the centralized management of shielding devices.

A mobile phone jammer is deployed in each classroom in the examination room, which can seamlessly shield signals within the frequency range of 20MHz to 6000MHz in the examination room. It can also shield the latest 5G mobile phones. The mobile phone jammer adopts indoor cellular distribution mode to form a network with the shields in other classrooms for shielding. The shielding device is installed near the doors and windows of each examination room to ensure effective shielding of the signals in the examination room and complete coverage of the examinee's seating area.