Everyone is familiar with mobile cell phone jammer. They are also called cell phone jammers. Anyone who has taken a large-scale exam has seen them. They are placed at the entrance of the examination room. This is not malicious blocking of signals, on the contrary, this is a performance of maintaining fairness, in order to give people a fair test environment. However, many people sometimes wonder whether it will affect the signal radiation of the base station, resulting in no signal in an area. If you own a smartphone, you may not know that at certain times and places, your phone service may be interrupted without your permission. A cell phone jammer is a device that encrypts signals on a specific frequency. This encryption prevents your smartphone from sending and receiving signals. If you believe that your smartphone has been illegally interfered with, there are many ways to protect your phone.

In scientific research institutions, the state must protect the safety of scientific research data and scientific research results. They use multiple functions of high-power jammers. On the one hand, some data that may interfere with insiders will steal the device. On the other hand, some wifi jammer that try to attack scientific research equipment will also send signals. In these research facilities, confidentiality is extremely high and there is no information leakage, so high-power multi-function jammers are widely used in such places. Different shields can shield different signals, depending on the needs of customers. For example, there are remote control deception signal jammers, walkie-talkie signal jammers, GPS signal jammers, mobile phone signal jammers, WIFI signal jammers, Bluetooth signal jammers, pinhole camera jammers, etc...

Sometimes, we will see a rectangular black thing hanging on the arms of police, security, and special police, which looks like a walkie-talkie. what is this? That's right, this is a portable mobile phone signal jammer, which is used to shield mobile phone signals from base stations and mobile phones to make the mobile phone unable to work. How about this? If necessary, you can wear it so that it can provide you with a quiet environment and refuse annoying calls. Now consider whether you need a signal jammer? If your work needs to be kept secret and your workplace is unstable, maybe you need a cell phone jammer. Below we will introduce a 3G 4G mobile phone jammer. It is aimed at the interference of all 3G 4G mobile phones. After charging, you can take it to a car, office, lobby, gym or swimming pool to ensure that all 3G phones will not leak your speech and work.