This is bt&com. Ltd in south Korea. Immobilizers can neutralize criminal acts such as bombings, terrorism etc. We are called this products like mobile jammers, bomb jammers and cellular phone jammers. Mobile jammers will be protect a people who was in dangerous situation in the world. Mobile jammers interrupted high-tech terror in the past. But, still explored the bombing by terrorist or attacker. Therefore, bt&com. Ltd developed cellular phone jammers for protection peoples and places in the world.