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Handheld Cell Phone Blocker 16 Bands 5G Jammer

Cell Phone Signal Jammer For A Room

Perfectjammer 2021/08/21

In response to the current situation of some criminals cheating on mobile phones during the examination process of the domestic college entrance examination, adult college entrance examination, self-study examination and various colleges and universities, and at the same time, it also combines various intermediate and senior middle school students using mobile phones to send text messages randomly during class time. The current situation, as well as the troubles and noises caused by mobile phones in serious places such as various large, medium and small meeting rooms of government agencies and enterprises, concert halls, theaters and other serious places. High-tech products carefully developed according to the actual situation of domestic mobile communications Cell Phone Signal Jammer For A Room , it It can cut off GSM/DCS/CDMA/PHS/3G (TD-SCDMA/CDMA2000/WCDMA)/4G mobile phone signals, 2.4GWIFI, Bluetooth wireless signals and radio transmission frequency bands within a radius of 1-20 meters (50-250 square meters) UHF400-470M, VHF136-167M, make the mobile phone unable to call and answer, the walkie-talkie cannot work normally, but it will not interfere with the work of other electronic teaching equipment, the mobile phone and walkie-talkie can be restored to normal use after leaving the partition range. cell phone jammer Clean the school and clean the meeting.

Whether mobile phone jammers are harmful to the human body and whether it affects the human body has become a hot topic of online and offline discussions. Cell Phone Signal Jammer For A Room what exactly is it? How does it work? In response to the relevant discussion about mobile phone jammers, relevant persons from the Ministry of Education gave a clear answer on this issue: "The claim that mobile phone jammers are harmful to the human body lacks scientific evidence, and mobile phone jammers are currently a good means to effectively prevent large-scale fraud." Because the power of the mobile phone signal jammer is very small (less than or equal to 1W), the range of action is only 20 to 30 meters, and the frequency of the electromagnetic signal emitted by it falls completely within the working frequency band of the mobile phone specified by the country, so it will not interfere with the human brain. Affect people's normal thinking. For further verification, the reporter managed to find a mobile phone jammer and turn it on on the desk. The mobile phone and the PHS signal suddenly disappeared.