What types of cell phone signal blockers are there? Wifi signal jammer, car gps signal jammer, 2g 3g 4g 5g signal jammer are the three most commonly used signal jammers.
Wifi signal jammer also called Wifi signal blocker. It can shield 2.4 ghz and 5.8 ghz WIFI signals and is widely used in residential, school, conference room and other places. It can not only shield the WIFI signals of mobile cell phones, but also shield the WIFI signals of all devices during the frequency band, such as laptops, wireless monitoring, etc.
Car gps signal jammer also called car gps signal blocker. It can shield the GPS signals of cars and mobile phones, making your journey more reassuring. Because it is mostly used in cars, it is a portable hand-helddesign, which contains rechargeable batteries and can last for a long time. And it has been widely used in the military field.
2g 3g 4g 5g signal jammer also called network signal jammer. It can shield all communication and network signals of mobile phones, effectively preventing cheating in exams and eavesdropping on meeting content.
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