The signal Jammers is designed to block communications between two RF Wireless equipments like Mobile phones and Cellular base station, VHF/UHF Walkie-Talkie, GPS, WiFi 11 a/b/g/n, WIFI, SAT Cell phones, Radio Phones or Remote Controls without interfering with other communication systems. Jammers4u help you to design your system. Jammers are used in many different scenarios and to find the best fit for your needs, we care a whole spectrum of jammers for every possible application. However, there are so many different wireless technologies that are in use today, that we can help you to accomplish your goal with the best combinations of bands to suite your needs.