Pantagone  Satellite provide good  practical  jammer to  limit the effectiveness  and  detect Radio signal  or  mobile phone signal . This mobile phone signal jammer will stop signals on the GSM, DCS, and 3G bands without interrupting any other electronic device, and with the high and low setting, you can  modify  how far the jamming coverage will be. This is a perfect  device  for all  those areas that require quiet including  meeting rooms, museums, theaters, churches, classrooms, and is designed to either be used on a table top. If you are interested  in any of our products, If you are interested in any of our products, please feel free to contact us directly for more details.