Mobile Phone Jammers

Mobile Phone Jammers are now the rage in theatres, hospitals, prisons, cinemas etc.

They come in various permutations, including a new device that looks like a normal cellphone and which can block any calls within a 100m radius.

They are of course illegal in many countries as they indiscriminately jam all cellphone calls in their transmission-jamming area. Check for their legality before you use/purchase one.

Cellphone Jamming Products
 

• In December 2003, the bizarre Jamming Of a Moldovan GSM Network was reported. 
   
• The US military recently unveiled the WolfPack Mobile jammer which is dropped by parachute
   
• In December 2003, a GSM Jammer Security Device saved Pakistan's president in an assassination attempt
   
• Colonel Gaddafis notorious cavalcade block any cellphones as he drives past using jammers in his limo