Mobile phone communication has brought great convenience to our life, but in some special occasions, such as the examination room, it is necessary to avoid the use of mobile phones on the mobile network. At this point, it is necessary to use the method of wireless interference to partially destroy the communication in the designated area, and the network jammer came into being.

In recent years, there are many cheating behaviors in each college entrance examination, especially the emergence of various "black technologies". In this regard, the network jammer has become the necessary equipment for large examination venues. The network jammer is used to protect the information in the process of network information transmission. It is a principle of electronic signal blocking. The product transmits a kind of interference signal, so that all electronic signals within the range can not be used. The network jammer will continue to open during the college entrance examination until the end of the examination. As long as candidates receive and send information in the examination room, they need to have a signal, and the network jammer will shield the signal from the root to prevent cheating in the examination room.

Warm prompt: The popularity of 5G network is very fast now. There are new changes every day. Students with 5G mobile phone network may take them to the examination room. Therefore, if you want to shield all 5G signal bands in the examination room, you need to replace the latest 5G shielding module and add the 5G band to the band of the network jammer.