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GPS Jammer is an in-car spy sweeper

GPS Jammer plugs into your car's cigarette lighter port and blocks GPS signals.

No more road and track Chinavision

If your bulletproof raincoat, tape-recorder blocker, and surveillance detection device are just not enough to give you peace of mind, this in-car GPS jammer might be just what you're looking for. Once plugged in to your car's 12-volt cigarette lighter port, the device will apparently block all GPS signals in a broadcasting range of 1450 to 1600Mhz--translating into a a 2- to 4-meter radius of GPS anonymity, according to manufacturer Chinavision.

The GPS jammer might not be good enough to protect you from autonomous surveillance drones or spying robotic insects, but at least it will take them longer to find you.