Causes of developing call prevention devices on the market

Causes of developing call prevention devices on the market

Mobile phone signal jammers are not cut off from electronic devices by mobile phone communication or wireless LAN signals. It is harmless to the human body and can be widely used. Jammers are applied in places where the use of mobile phones is prohibited, such as government, military, finance, securities, and prisons. The use of cell phone jammer is widely used in testing. The test site is currently the most used place for jammers on the market.

4 Bands Portable Jammers Jamming GSM 3G GPS WIFI 315MHz 433MHz 868MHz

With the development of society, many high-tech technologies have appeared in major tests. The invention of mobile phones is actually bringing people closer. It has brought great convenience to people's lives. I carry my mobile phone with me. This often has many drawbacks. This is the reason for the development of telephone signal jammers on the market. There are exams such as large-scale university entrance exams, qualification certificate screening and recruitment of civil servants. Justice and justice are the most basic principles of many exams. Mobile phone signal jammer and other technical means should be used in the test. I can't communicate with my mobile phone. Each classroom is basically provided with a mobile phone jammer. Smartphones affect the fairness and impartiality of exams. You need to use jamming tools.