There are times that you might be in places wherein your cell phone signals may not be working or even your Bluetooth. It is also in these places that your Wi-Fi may also nit be working. It is when you experienced these things that you might be in an area where there are cell phone blocker . The very moment that you will see these devices, then it is your signals that may be blocked.
The very first purpose of these devices is to make sure that any signal will be blocked to any phone to make sure that silence will be observed especially in public places like the theater and library. Making distractive noises with their phone is what some people will be doing especially when they are in these places disrupting other people. And that is the very reason why signal jammer is installed in these places. Theatres, religious places like churches, like hospitals, libraries, museum etc. are just some of the places where you will see these devices . People with criminal minds soon made use of these devices to be used in their criminal acts. For most homeowners, they will not be able to make any call to the authorities whenever there is a robbery since the robbers will use them to block signals.
And that is why for the very reason, signal jammers are now being banned in many countries. Due to the fact that it has been interfering with cell phone signals, many emergency calls have been affected as well. But you can still see some countries that allow signal jammers to be used but in public area. You also need to ask permission from the authority before you will be able to use them. One of the places wherein signal jammers are legal used are in banks and in jails . It is when these signal jammers are used in these areas that bank robbery will be prevented. It is also when there is a military operation that signal jammers are also widely used. But regardless of the purposes, it is very important that these devices will be used with care. Any unwanted interference will be prevented the very moment that you will be doing this one. It can be very valuable especially when there are any emergency calls.
But regardless of the banned that has been imposed on these devices you can still purchase them online. The moment that you will be going online, then you will be able to find these signal jammers at a god price. Looking like a cell phone is what most signal jammers that you will be able pt see online. A fully charged signal jammer is what you will need before you can use them. Blocking certain frequency is also what some signal jammers can do since they have a frequency filter.