GSM jammers

High power GPS\GSM jammer This device will jam all GPS and GSM signals up to a distance of 50 metres. It simply plugs into an ordinary car cigarette lighter socket and is active immediately blocking all types of tracking and navigational devices. This model can also be powered by mains voltage.Only GPS jammers will prevent the GPS loggers and GPS/GSM devices to get GPS positions from the Satellites ................................................................................................................................ Specifications: Effective range: Up to 50 meters radiusInput power: 12.0v dc via cigarette lighter socketOutput signal strength: 1 wattSystem: All systems worldwideSignal source: synthesizedOperation temperature: -10c to +50cHumidity: 5% to 80%Size: L 115 x W 62 x H 30 mm approx.Weight: 300gm US$ 480.00UK? 250.00