With the development of society, many high-tech technologies appear in major experiments. The invention of the mobile phone actually brought people closer together. It brings great convenience to people's life. I carry my phone with me everywhere. This usually has a lot of downsides. That's why Cell Phone Signal Blocker South Africa develops on the market. There are large-scale college entrance examinations, qualification certificate screening, civil servant recruitment and other examinations. Fairness and impartiality are the most basic principles of many exams. Technical means such as cell phone jammer should be used in the test. I can't communicate with my phone. Basically every classroom is equipped with cell phone jammers. Smartphones affect the fairness and impartiality of exams. You need to use a tool that interferes with the device.
School exams are designed to prevent students from using mobile phones to transmit information, leak test papers and cheat on exams. Some are also to prevent teachers from bringing test papers and leaking test paper information, which will have a negative impact on later examinations. All schools are suitable for installation Cell Phone Signal Blocker South Africa ? The mobile phone signal jammer uses the same frequency as the downlink frequency of the mobile phone receiving base station for co-frequency electromagnetic interference, which will be affected by the signal strength of the nearby base station and affect the shielding effect of the mobile phone. cell phone.