Reviews: Adjustable 3G 4G(4G LTE + 4G Wimax) Cell Phone Jammer - 40M

recommend rating

That signal jammer is a really powerful device. And it is possible to choose what to jam and even tune the interference signal power. I use it for blocking Wi-Fi snooping, just don't want my Wi-Fi network to be seen form the outside. The only thing it lacks is the cooling system, it is getting rather hot while working, though it never turned off because of overheating.