In addition, a wifi signal blocker（https://www.jammermfg.com/wifi-jammer.html） is also a very useful device that can block surrounding wifi signals to prevent your personal information from being stolen by others. Many public places now provide free wifi, but this also means that your mobile phone or computer may be attacked by hackers. Using a wifi blocker can effectively protect your device and allow you to use wireless networks with confidence when you are out.

In addition, a gps jamming device（https://www.jammermfg.com/gps-jammer.html） is also a very practical device. It can interfere with surrounding GPS signals and prevent your location information from being located. In some cases, you may want to protect your privacy and not let others know your exact location. Using a GPS jammer does just that, allowing you to move anonymously when needed.

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