Bluetooth signal is very useful in some situations, but when we prevent some peeping incidents that often needs to phone signal jammer
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
I'm curious how much can the Mobile Jammer shielding in the end range, is not there can be 1 km away, it would be too crazy
Some taxi fleet operators to install their own cell phone signal jammer, designed to prevent the use of mobile phones while driving on the way to improve the safety index.
Knowledge:gsm blocker is illegal in some countries supplies, only in some government units or special units for use, please note that check whether they belong to such persons.
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