8341-D8 enhanced signal shielding device, unique customized high gain antenna, high efficiency management chip shielding only shields effective signal reception, this machine high gain antenna coverage, can be 10-30 meters (depending on the base station signal strength) The shielding range is shielded against the operator’s dual-mode 2G, 3G, 4G, GPS, WIFI and other signals, so that all communications within the shielding range are completely disconnected from the outside world; the communication network is reflected as no network or no signal, no service . With the development of science and technology, the leakage of mobile information, telephone detonation bombs, serious areas, etc. have caused social harm; due to the continuous enhancement of the coverage of the current signal, the shielding effect of the shielding device is poor.
$981.99
$1547.82
