Cell Phone Jammer is used in many places. If you need to be quiet, you can turn on the jammer and the phone is in signal state to avoid the interference of the phone ring. Of course, jammers are also used in many areas, such as classrooms, which can be used to help prevent student fraud. Prevent jammers from interfering with radio and external jailbreak communications in prisons. This is a very useful tool to prevent signal propagation. We recently designed a variety of jammers for UAVs. These jammers can be very good for drone interference to prevent unmanned The machine seizes privacy.
https://www.greatjammer.com/
