Detailed demonstration of the installation and use of 8-band signal jammers
Chinese correctional facilities inhibit cell phone signal access
Received questions
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Chinese police have reportedly begun installing cell-phone jamming devices around prisons in an effort to prevent re-offending. Is that true?
Second floor
Hello, Jeffrey
As a very popular device, cell phone signal jammer is used in various fields.
For example, library, prison, classroom, church and other places. In addition, the government and private enterprises are also purchasing such products on a large scale
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If you want to know the frequencies of your country, we can offer you some help:
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