The specific effect of the wireless jammer depends not only on the efficiency of the equipment itself, but also on the actual site terrain, nearby base stations, building materials, and whether there are unnecessary obstructions. For example, when the signal passes through reinforced concrete, glass and wood, the degree of signal attenuation is different, which will more or less have some impact. In today's communication era, there are more and more places where wireless jammers are used, such as examination halls, gas stations, meeting rooms and other places. In these places, interference devices are used to interfere with the mobile phone signal, so that the mobile phone does not need to be turned off, and some unnecessary troubles are avoided.

The working mode of wireless jammer is to transmit jamming signal frequency band to interfere with the signal frequency band of mobile phone receiving base station. In general, the power of the jamming equipment in the transmitting frequency band is greater than the power of the mobile phone reception signal, so as to achieve the effect that the mobile phone signal is interfered. On the contrary, it will not work and will not affect the use of mobile phones. Therefore, we should pay more attention to these problems when using these interference devices. Of course, the effective coverage area of the wireless jammer is not supported by more accurate data, and there are many factors that can affect it. Before selecting it, we should test the interference effect of the device more through the mobile phone, and then select it according to the actual situation.