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How to get my students to quiet? They play phone in class. Can I use the GSM jammer
In some places sell desktop gsm jammer
, they are wider, more power, and some can even reach a few kilometers
GPS is a geographic positioning system, it's there to provide a lot of convenience, but not everyone needs to be chased, so the birth of GPS Jammer
mobile phone jammer
used in schools should be legalized because it can contribute to student learning and exam fairness.
Some people use RF jammer
to steal cars, it was a big problem. I think we should improve the next vehicle anti-theft system.
can be easily filled into the atomizer, atomizer generates heat through the smoke.
I very much want a ego battery
, it is cheap and easy to use.
can support multi-band signal shielding, and some GPS JAMMER can shield mobile phone signals.