5 bands gsm 3g 4g wifi High Power Adjustable cellular Signal Jammer
Specification:
Just as other cell phone jammers, this kind of 5 bands gsm 3g 4g wifi High Power Adjustable cellular Signal Jammer can effectively block the signals between cell phone jammer and its nearby base station. With adjustable output power, each band can be controlled in separately way. It can be used in many places, such as Meeting Room, Oil and Gas Storage Facilities and fields, Hospitals, Theatres, Recording Studios,Banks, Contract Tendering Rooms, Churches, Conference Rooms, Classrooms, Testing Facilities, etc.