Personal Cell Phone Jammer Demonstration This video shows the mobile phone jamming capabilities of a cell phone jammer up to 15 meters. Cell phones can detonate a radio controlled improvised explosive device, or RCIED, and a jammer can stop them. We can supply jammers for buildings and vehicles up to 300 meters, and from 20MHz to 2.5GHz! Go to our website to contact us for quotes on your specific needs; 1-877-339-3779.