Now the classrooms installed Cell Phone Jammer Manufacturer are all full frequency bands, which can shield all the 2G 3G 4G signals, 2.4G WIFI signals and Bluetooth signals under the three operators of China Mobile, China Unicom and China Telecom. Some posts say that after turning off the automatic selection of the mobile phone network operator, it will not be blocked if the network is manually selected. In fact, this is not correct, because the mobile jammer is aimed at all mobile phone frequencies under the three operators. It is shielded, so no matter how it is switched, it will be shielded, which means that no matter what the mobile phone card is, it is within the shielding range of the shielding device. This cannot be evaded by cracking the number and band, cell phone jammer Because no matter which number or band you use, it is within its shielding range. There is also Bluetooth software that is not acceptable, because its frequency will also be blocked by mobile phone jammers. The only way is to install a mobile phone signal amplifier near the place where the mobile phone signal jammer is used to counter it. When the mobile phone signal becomes stronger, the mobile phone jammer will be more difficult to shield.
The mobile phone signal jammer is one of the indispensable equipment for examination rooms, prisons, gas stations and other places. Its function is to shield the mobile phone signal and make the mobile phone unable to operate normally. Judging from the size of the examination room Cell Phone Jammer Manufacturer , it is not very big, and it can be conveniently placed in any position in the examination room without the need for additional space. And there is no noise, and the use of mobile phone jammers will not have a big impact on the candidates. In addition, there is no need to worry about its impact on other electronic equipment, it is mainly to shield the mobile phone signal. At the same time, it is used to cut off the connection between the mobile phone and the base station, and will not cause harm to the human body. At present, with the development of science and technology, the range that this kind of mobile phone signal jammer can cover becomes wider and wider. A large area can be covered at one time, so the cost is greatly reduced.