mobile phone jammer (MP-3000)

Mobile jammer is an instrument which can make the mobile losing its ability to send and receive call within certain scope. So if you dont want the person to use mobile in some occasion, such as meeting room, bank, church, prison, class room, government institution, petrol station and so on.
Just put one jammer in the place, avoid offence and inconvenience for asking the people to turn off their mobiles. And we also have unidirectional jammer which can restrict the effective scope. Also you can use the power adjustment to set the distance you want.