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    Hi Karen! Your question is really relevant and I guess it truly matters for many people out there! So let’s get to the point in here. You see, signal jammers are such electronic devices which intended to block different frequency bands depending on their specifications. Those specifications might include many various frequencies which jammer will successfully block. The jamming signal will affect only those frequencies that it is meant to affect, thus it may be GSM, GPS, 3G, 4G, WiFi, Bluetooth (here goes internet if it is wireless), UHF/VHF band (LoJack included), and satellite XM radio. So if you are using, let’s say, GSM and GPS signal jammers, nothing else will be affected. And, of course, if you want to use WiFi and Bluetooth signal jammers, remember that your own wireless internet will be blocked too. And don’t forget about satellite signal of your TV because sometimes this exclusive jammer may affect it, if the frequencies are the same. As for landlines, they will never be affected by any kind of signal jammer, so even if you are using GSM/3G blockers, your landline will be fine.

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