For Car Security, C.T.S brings you this Anti GPS Tracking Gadget, with an incredible 3-6 meter coverage. It is very easy to use as all that you need is a standard cigarette lighter with 12V for power, and the GPS Jammer will automatically cut any GPS Tracking on and within your Car. A nice item to own and to sell, and comes with a one year warranty, so feel safe ordering C.T.S Car GPS Jammer.  China Manufacturer Specifications Working Band: L1 system 1450 to 1600Mhz  Signal Jamming Power: 200mW  Antenna Impedance: 50 w  Coverage: 3-6 M  Power supply: 12V  Currency: 200mA  Dimension: 20x105x35mm (LxWxD)  Manufacturer and Origin: China  Please use the enquiry ticket system if you have any specific queries about this device