Phone Signal Jammer

The phone signal jammer is a fixed signal jammer to prevent a place from phone signals, wifi signals and other specific signals as customer required. In that place, phone can not receive or transmit the messages or calls, wifi network will also be out of work. 

It adopts the durable aluminum alloy outshell, ultra heatsink and large fan, to have a nice cooling effect, and to ensure its long time stable and effective working. As a phone signal jammer, it adopts the strong high output power to jam the signals effectively and efficiently. 

The phone signal jammer signal shield device is perfect for the examination room, class room, business conference room, meeting room, church, temple, law enforcement department, etc.