With the popularization of 5G signals, mobile jammers have also added signal frequency bands to address this situation, and current signal shielding devices can block 5G signals. Why do some shielding devices have the problem of not being able to block 5G signals? In fact, this is mainly because the signal strength of the usage location is different. Due to differences in location and environmental factors, or the presence of base stations nearby, assuming that the signal strength within the campus is very high, the shielding effect will be greatly cancelled out. Mobile jammers have always been following the development of the times and are more than sufficient for current 5G signals. These types of shielding devices generally add 3.6G antennas and 5.8G antennas, which can comprehensively shield multiple frequency band signals such as DCS, CDMA, WCDMA, WIFI, FDD, GSM, TD-SCDMA, TD-LTE, 3.6G, 5.8G, etc. There are some shielding devices that are old and not equipped with 5G modules, which naturally do not support interference with 5G signals. At this time, you can contact the manufacturer to upgrade and add 5G shielding modules.