Phone Jammers To protect your privacy and the whereabouts of sensitive information, GPS satellite location tracking can be an effective prevention.
It can effectively shield 2.4G, WIFI and wireless video transmission signals while effectively shielding CDMA / GSM / DCS / PHS / 3G and other mobile phone signals. Small size, power, light weight, wide coverage that is easy to carry. GPS jammer transmission power 20W.
The effective shielding distance is 1-25 meters (the actual distance and the signal strength of the local operator. There is no difference in the distance used by the indoor and outdoor signal jammers.