From the FCC
E-Security Technology Co.,Ltd. was established by Zhejiang Government in 2000, focusing on the development and marketing of Security and telecom products Now E-Security is the foremost innovator in the field of RFjamming, In countering the ever growing threat of remotely controlled improvised explosive devices (RCIEDs), E-Security has invested heavily in the development of a range of State-of-the-art, multi band, very high power jamming systems ,Vehicular Jamming system,Multi band Jamming system,Indoor and Outdoor Jammers(Cellphone Jammers,Gps Jammers,Wireless camera jammers
portable cell phone jammer is illegal in the U.S. Very illegal. And not just by ordinary citizens. It's illegal for theater and restaurant owners to jam (block) calls, and even state and local police or prison officials. The U.S., in fact, has the strictest laws in the world against jamming cell calls.
There is such an item actually all cell phones come equiped with them however most people are un aware of that function............. It's called the OFF button :sssh:If there is a cell-jammer available, I would be interested in having one installed in my vehicle. When I am driving, I do not want to be "bothered" by people calling me. If there was a jammer tied to my ignition (turns on when the vehicle is running) that could stop calls from coming through, it would be great. The bonus would be if the range was sufficient to jam other people's signals within 50 meters of my vehicle while I am driving.
It would be nice if that was true, but, there are phones now that have embedded batteries and no off button. You see them everyday as you are driving, walking, shopping, etc. It is the iPhone. The iPhone is designed more like a remote-control - always on and always trying to communicate with cell-towers.There is such an item actually all cell phones come equiped with them however most people are un aware of that function............. It's called the OFF button :sssh: