12V Car Power Supply With GPS Jammer Signal Interference Blocker

Car 12V DC fuse protection circuit.Interfere with all current GPS satellite positioning signals. Effectively guard against GPS satellite positioning and tracking. Small size, high power, light weight, large coverage, easy to carry.Work does not affect the normal use of mobile phones or other electronic devices.Effectively interfere with GPS satellite signals to protect your whereabouts information confidentiality. Features Prevents the car to be tracked. It prevents people from being tracked. Avoid tracking rental vehicles and vehicles provided. Avoid tracking automobile government, intelligence agency, famous person, principal, etc. This device does not interfere with the mobile phone and other wiring (electronic device). This device does not affect navigation device which installed on other cars. Small volume, carried easily, and international use. Adopts technology interdiction and interposition code, so will intercept the signal of satellite and break it completely. It can be used