The shielding range of cell phone jammer is one of the most commonly discussed topics on the Internet regarding various interference devices. Every mobile phone jamming device has a different working range, so if you decide you need to buy these signal jammers, it's important to know something about this. The point is that you can find the information you need on the Internet and make a purchase based on your choice.
The first thing you can do here is pay attention to the wireless network, no matter what you try to connect, the connection itself is very dangerous. You should know that Wi-Fi networks are inherently dangerous and they are vulnerable to various hacks and attacks. There are even mobile applications designed to crack wireless connections, so an attacker can just use a tablet or a simple smartphone to hack your phone using Wi-Fi. If you use a WiFi jammer, you can ensure that the WiFi network is blocked from the risk of information leakage.
It is also important to check your smartphone settings, as many of them try to connect to any network that is accessible by default. It will be very useful if you activate the Wi-Fi module when it is not needed. Or just use a portable WiFi signal jammer to block all wireless connections in the area. Of course, most mobile phone jammers can also block WiFi networks.