Cell phone signal jammers can only block cell phone signals and have no effect on other electronic devices. The electromagnetic signal emitted by the mobile phone signal jammer is completely within the specified working frequency band, and can only block the communication signal. And such a signal i......
Read MoreOur fully integrated broadband jamming system is widely applied in the prison, government site, Special Police, Border control units, law enforcement quality department and the anti terrorism team, infantry,military security force,SWAT team, anti-terrorism units, anti-drag units, anti-riot force, ch......
Read MoreHow to prevent examination cheating in school ? most schools are facing the serious problem of mobile phone cheating in examinations, and this problem becomes more and more serious nowadays while the high speed data generation 5G mobile signal is spreading widely among worldwide people.
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