How do students' mobile phones block WiFi signals before the exam? And how to block cell phone signal?

How do students' mobile phones block WiFi signals before the exam? And how to block cell phone signal?

As a semester is coming to an end, schools are about to prepare for the final exam. Some school teachers and parents, worried that their children will be addicted to playing mobile phones and affect the school, are concerned about how to block WiFi signals or block mobile phone signals at the same time, so that students can Get out of the state of playing with the phone. So, in schools or at home, what types of signal jammers should you choose to solve these problems?

We all know that there are only two sources of mobile phone traffic used by children, one is the various packages and data traffic packages that parents handle for the mobile phone itself, and the other is from the WiFi signal in the environment. How to block WiFi signal and block mobile phone signal? In fact, the method is quite simple. Our topsignaljammer Technology Co., Ltd. usually recommends wifi jammer of low-power models, such as SMa-818B or SMa-818B5 of Shengma brand. These are stand-alone version of the signal jammer. It can be turned on when it is powered on, and the synchronization effect of shielding the mobile phone signal can be completed while shielding the WiFi signal. The signal grid on the children's mobile phones will show zero grid. In this state, the mobile phones can browse web pages, videos and play games on the Internet without Internet access.

Handheld Portable GPS Jammer Blocks GSM 3G 4G WiFi Frequency

The SMa-818B5 signal jammer, for the shielding and interference of WiFi signals, will act on two wireless frequency bands at the same time, namely the 2.4G band and the 5.8G frequency. Therefore, teachers and parents do not need to worry about whether they are using a dual-band WiFi router or amplifier. The shielding of mobile phone signals is also full-standard and full-band, that is, whether children's mobile phones use 2G, 3G or 4G, 5G, they will all be blocked.

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