The 5-band phone blocker is very six-wire in Europe. It can interfere with 3-4 medium signals, and the interference distance is about 15-20 meters. In view of the continuous development of communication systems, it is a high-tech product that has been successfully developed according to the actual situation of foreign mobile communications. Adjust the shielding range on site according to the required places), cut off wireless signals such as CDMA/GSM/DCS/TD-SCDMA/WCDMA/4G/E/4G/D/WIFI/VHF/UHF, so that the mobile phone cannot make and receive calls, and cannot Send or receive information, but it will not interfere with the work of other electronic devices, thus ensuring the safety of the required place, and the mobile phone can resume normal use after leaving the partition range without any damage to the human body.