The radio frequency emitted by mobile phone signal jammers is the same as that of mobile phones, so their function is similar to jammers. This will cause enough interference to prevent the call from connecting to the phone. Currently, there are two types of mobile cell phone jammer. The first category is usually a small device that prevents the signal from being sent from the cell phone tower to each cell phone. The blocking frequency is 800MHz to 1900MHz. Most devices using this technology can block signals within a 30-foot radius. The phones in this area do not display any signals.

Mobile phones seem to be an indispensable tool for people to travel. We blindly pursue the rapid development of new mobile phones, but we do not know whether many loopholes in mobile phones will expose our privacy in public places. This is a warning story. As we all know, the Android operating system supports more than 1 billion smartphones and tablets. Technological advancements are producing and releasing new versions of mobile phones, tablets, and operating systems every time. new version. possibility. We will inform you of the history of Android OS as soon as possible. Android 6.0 KitKat is the latest member of the Android series with improved functions. Given that Android has been used for many years, it is a privileged framework, and Android is a safe and stable operating system, so we think it is reliable, so we can completely trust the new version.

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