Why need GPS signal anti-tracking device

GPS tracking unit is a device, normally carried by a moving vehicle or person, that uses the Global Positioning System to determine and track its precise location, and hence that of its carrier, at intervals. In the United States, tracking Global Positioning System device can be seen everywhere. Your car is likely to be FBI and some criminals to install tracking device. These may sound like joke, but in fact they are real. So how to solve this problem? Maybe car cigarette lighter GPS blocker are a very good choice.
https://www.perfectjammer.com/gps-blockers-jammers.html
GPS signal jammer can be effectively blocker signal Global Positioning System. Whether you are at home or in the driving process, it can guarantee that your personal location is not available. Your personal privacy can be adequately protected. Such devices are also often used to protect politicians and counter espionage operations.