Mobile phones are an indispensable partner in our lives and also the biggest tool to attack our privacy. Mobile phones have improved people's lifestyles and brought great convenience to people. However, mobile phones themselves are a leaking tool. The "mobile" directional transmitter and receiver can be confusing to anyone at any time by his mobile phone concept, even if the phone is turned off. These signals can be blocked using high power cell phone jammers.
Harassment calls, cell phone ringing noises, etc., have caused great troubles to our lives. They all operate through mobile phone signals. If there is no cell phone signal, these problems will be completely solved. Powerful jammers, a tool for shielding mobile phone signals, can block a variety of mobile phone signals, such as the common GSM CDMA 3G 4G signals on the market, most powerful jammers can also block GPS WiFi UHF VHF LOJACL signals, etc.
Conventional mobile phone jammers can only interfere with 2G 3G mobile phone signals, while high power signal jammers can block multiple signals at the same time, generally used in examination rooms, conference rooms, libraries, theaters, military bases, etc. For some people with special security requirements, their actions are generally to delete the SIM card or remove the phone battery, each phone has a very accurate IMEI serial number. Once installed, it is easy for some criminals to connect the SIM card to the IMEI, and disassembling and reassembling the battery can damage the phone, and even some phones cannot remove the case, so you need to shield the signal.
There are many high power handheld signal jammer on the Internet, which can not only block GSM signals, but also block GPS WIFI and Bluetooth signals, and even block new Lojacks for car alarms. Prices range from tens of hundreds to thousands of dollars. Multi-XX is designed to cover the entire floor or the whole place, mainly used to shield the conference room signal and prevent cheating in the examination room.
