http://www.jammer-buy.com/blog/n-31.html
A GSM jammer can be put into the pocket and found that the entry level is less than 50. This type of mold team organizes some criminals, a small part of the thief, but it should be proven to be a bit effective to grow into this technology. This type of device is regulated, at least for individuals without French territory, but of course we can easily get ''forbidden'' to click on a few modes on the Internet.