This kind of jamming device sends radio signals in the 800MHz frequency band, which is used as the mainstream carrier frequency band for NTT DoCoMo and KDDI au phones. Products for other frequency bands are also provided. Currently, the main corporate users of mobile cell phone jammer devices are hospitals, concert halls and movie theater operators, but some banks also install devices in ATMs to prevent “ores.” (It’s me, it’s me) scam. Professor Emeritus of Bangor University in the United Kingdom said: “GPS is deeply embedded in our society’s transportation, manufacturing and economy, and therefore poses a high risk.” David Last (David Last) said. Today, mobile phone jammer devices have become private sector products, rather than electronic warfare devices. This is because as the number of mobile phone users grows, there is an increasing need to disable mobile phones in some areas where mobile phone ringtones are annoying. These locations include places of worship, university lecture rooms, libraries, concert halls, conference rooms and other places where silence is allowed.
The 3G mobile phone signal jammer is designed with a good cooling fan system, so the 3G/4G mobile phone signal jammer is always in good working condition. High temperature will damage the 3G mobile phone signal jammer and will not affect the use. Therefore, one aspect that people consider is that the interference power range of the 3G signal is very large. If you don’t have to worry about the high interference capability of this 3G mobile phone, you can easily use it as a church, theater, concert hall, classroom, book, museum, bank, museum or other noisy places, you can’t, there are.