The shielding range of Wireless Signal Jammer will change due to the power.

    The shielding of high-power wireless signal jammer is very strong, and its shielding radius can reach hundreds of meters. When installed in prisons, detention centers and other special occasions. Because the shielding of wireless signal jammer is too strong, it will inevitably affect the normal mobile phone communication demand of nearby residential areas. Therefore, high-power shielding devices are generally used in relatively open places far away from residential areas.

    The shielding radius of low-power wireless signal jammer is about 10m. If there are multiple base stations nearby, the actual shielding distance of Wireless Signal Jammer will be affected. With the mobile phone signal transmission in the city, more and more base stations are installed, which makes the overall signal strength better and better. The original same machine can't compare with the shielding effect at the time of purchase. This is not the failure of the shield, but the change of the surrounding signal environment.