The 2018 World Cup will take place in Russia. It is an exciting time indeed for football fans. Of course, they'll spend time watching the game. If you get interrupted by the phone, can't watch TV before the game, or your friends are really sad and disappointed, now there is an urgent need to avoid cell phone noise. In this case, the use of the signal can interrupt the interference of the cellular phone signal. This device may be your best choice right now.

When there is an important…

When ordinary civilian cell phone jammer are used in places with strict cell phone protection requirements, such as prisons, they exhibit the following manifestations:

1. The armor effect of the armor area is weak and there are more blind areas and blind spots. Some areas near the cell area window, especially on the base station side, can also be connected to cell phones under certain antennas…

The operation method of the cell phone jammer is to first select the area where the mobile phone signal needs to be disconnected, and place the disconnector on the desktop or wall of the area. After assembling, connect the isolating switch, turn on the power, and turn on the power switch.

After the signal jammer device is connected, tap the power switch to disconnect the device to operate. At…