Mainly used in various examination rooms, schools, gas stations, conference centers, hospitals, prisons and other places where the use of mobile phones is prohibited. The signal interference radius can be adjusted and the coverage area is large. When using a wireless signal jammer device, in order to avoid the possible interference of the wireless signal jammer to some electronic devices, the following common devices should be kept as far away as possible: stereos, wireless microphones, radios, computers, TVs, Wi-Fi routers, etc. Choose a high-power machine or a low-power machine according to your needs. It can effectively interfere with all 2G, 3G, 4G, 5G and WIFI signals of China Mobile, China Unicom and China Telecom.
