whether you want to buy over 50 signal jammers

It just hinders the connection between the mobile phone and the base station so that the mobile phone is always in a state of no signal search, and it will never cause harm to the mobile phone.The cell phone jammer emits interference signals like the frequency that the mobile phone takes over.Whether the test room signal jammer is effective depends on the environment around the test room and whether the quality of the test room signal jammer purchased is good. The test room environment is mainly to see if there are any base stations nearby. If there is a base station, it needs to be equipped with a little more shielding device.

It is understood that GSM jammer on the market can limit cell phone signals to 500 meters away from the launching station. The shielding radius is adjustable, and the coverage area reaches more than 30 square meters. The mobile phone signal shielding device can only shield the mobile phone signal and does not affect other electronic equipment.As soon as the shielding device is turned on, the mobile phone cannot receive the operator's signal, which makes it impossible to make calls or text messages.Naturally, the Internet cannot be accessed, and the 50 Signal Jammers is effective.

The smart functions of mobile phones are now expanding. In addition to basic call and text messaging functions, they also have digital cameras, camcorders, voice recorders, More application functions such as Internet access.Another important factor is obstacles. If it is a metal material, it will be directly blocked; if it is a solid reinforced concrete wall, it will be attenuated by at least 10 times after penetration.Hand-held cell phone jammer is a kind of signal jammer for mobile phones, because the mobile phone frequency band is also one of the signal frequencies of mobile phone communication, but it has its unique characteristics.