A wifi jammer fits in your pocket and is hand-held. Choose between mobile phone-only or combination models with GPS or even our most popular model, the Handy-Blocker Mini, to create a quiet zone around you or to prevent information from leaking in sensitive areas. Please visit our jammers page for information on jammers for fixed cell phones. If you have any questions about which model is best for you, reach out to our helpful staff for more information.
According to a study in January, NTIA researchers installed a portable cell phone disruptor in the storage room next to the 13 by 8 foot cell on the cell's first floor. The study claims that it successfully blocked cellphone transmissions in commercial frequency bands between 700 and 2170 MHz, but that it would not interfere with commercial transmissions if monitored at a distance of 20 feet and 100 feet from the cell. However, according to NTIA, further study is needed to determine if the technology poses a potential threat to commercially licensed wireless services outside the prison wall. There are still some obstacles. The agency noted that test results are only for their respective locations and results can vary widely at other prison facilities.