年表作成・共有サービス - pastport

Some tracking devices use signals from mobile phones to steal people's privacy. It is a great risk to people's normal lives. If you are using a phone jammer, the signal in the mobile frequency band will be easily blocked and the tracker will lose its function very quickly. In addition, the use of portable devices is necessary when the security, noise and other problems of mobile phones become more and more serious, and these problems can be easily solved within the operating range of the mobile cell phone jammer.Obviously, using a telephone jammer can protect people's privacy.
http://www.jammer-buy.com/cell-phone-jammer/c-24.html

GPS jammers were originally developed by the military and the government. As part of the defense strategy, GPS jammers are commonly used to hide the location of vehicles in critical situations.And then they became familiar to the general population and people like to use them to solve privacy issues and prevent GPS tracking.gps jammer are portable devices that prevent GPS location devices from receiving signals so that others cannot get your location. They are like the invisibility cloak of the military, which gives them an advantage in high-risk situations.
http://www.jammer-buy.com/gps-jammer/c-25.html

WiFi and Bluetooth are often used in our daily lives, and wireless networks and the Internet should also be used. If some criminals steal your privacy through the WiFi network sharing platform and you don't even notice that your information has been exposed, it will be very scary. Therefore, we should pay more attention to the security of electronic information. The wifi jammer can completely cut off the transmission of wireless signals. It can effectively prevent hackers from invading your computer or smart devices via wireless networks. We may use wireless jammers to protect our privacy.
http://www.jammer-buy.com/wifi-jammer/c-29.html