how to block mobile signal at home
Can the test room signal shielding shield 4G signals? This is a very critical issue. In fact, the new test room cell phone signal blocker device currently on the market have been upgraded, and shielding 4G signals is almost standard. However, some of the cheaper test room signal jammers currently on the market can only shield 2G or 3G signals.
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The 5 antenna handheld mobile phone signal jammer used the golden color appearance design, there are many interference signal frequency band combination for you to choose. The jamming frequencies includes the GSM, 3G cellular signals, GPS, WiFi, bluetooth, wireless video frequency. when press the...
- $209.88
$360.00- $209.88
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The high power phone signal jammer blocker can block all cell phone frequencies,including GSM,CDMA,DCS,3G,4G.Moreover,you can buy the jamming frequecies WiFi and GPS,or the UHF/VHF frequency jammers. This desktop powerful mobile jammer can be used in the school examination room,court,hospital and office etc.The radius of...
- $448.49
$700.00- $448.49
- Unit price
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This powerful 8 antennas portable cell phone jammer uses a longer gain omnidirectional antenna that can interfere with a wider range of radii, up to 25m. It can interfere with devices that rely on the 2G 3g 4g wifi gps lojack signal band. The...
- $539.69
$700.00- $539.69
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The portable cell phone jammer has powerful interference capabilities with 3 watt output power. At the same time, it has small and lightweight features which is convenient anywhere used. It can jamming the CDMA GSM and 3G cellular network signals. Besides, it also provides...
- $169.99
$269.99- $169.99
- Unit price
- / per