Portable Cell Jammers
Despite the fact that in some countries GSM suppressors are illegal, too immense use of mobile communications leads to greater demand for such devices.
There are many similar products, but particularly interesting are the handheld version, which can be carried and used anywhere. One of these new products have recently appeared for sale. Its producer is a kind of Chinese company, wished to remain anonymous. Dimensions suppressor signal comparable with major mobile phones, and the device weighs 324 g. of the duration of the internal battery is approximately 3 hours, which is more than enough. In GSM device can create "white noise" in the frequency range of CDMA and GPS. This suppressor comes with three antennas. The range of the device varies from 3 to 15 meters.