In the prison cell phone signal jammer can be used to effectively control the offender contact with outsiders, so in these places use the phone jammers are legal.
Let us look at Cell Phone Jammer is how it works.
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.
The car was installed to prevent the GPS signal tracking is very important, especially for the banking system. Sometimes the need to use GPS jammer.
GPS tracking for use in the current location, such as some devices such valuables, cars, trains, and so on. GPS jammer to prevent the positioning tool that can effectively prevent the installation of this class equipment items to be tracked, compact and efficient.
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