Cell phones offer great conveniences to people all over the world. It arouses new challenge on the safety of secret work. Now a day, copying in examination, wiretap, gas station outburst, and medical negligence are taking place due to mobile phones. Probably, it is one of the major reasons behind the emergence of jammers. Advantages of cell phone jammers are vast. Basically, jammers function under specific frequency and connect to the main station through electromagnetic wave. It transmits sound and data through intonation and baud rate. The device creates an unrecognizable code hindrance to jam a cellular phone. Most jamming devices can jam only one frequency.
Only advanced devices can block multiple frequencies. Now, it is being used in prison, theater, conference centre, library, church, gas station, school campus, government hospitals, and military site. Under the security of the device you do not have to worry about outburst and information safety. The new models are highly portable in nature. Diverse types of jammers are readily available in the market. Advantages of cell phone jammers are immense. The portable devices are particularly designed for small, safe and private places like mobile cars, discussion room and confidential office. Nevertheless, it can successfully block cellular phone communication in the range of 50-80 sq meters.