Mobile phone is an electronic device which is moveable from one place to another. It is based on radio wave. The sending option has the capacity to transform voice tone into electronic wave which is taken by another device and transform into th e sound instantly and then the communication goes on. It is the gift of science. Now it is said that the world is in fist o f a human. It has some advantages as well as disadvantages. Now it is not needed to go out for ring. Everybody who has a p hone can call others from their own place. It lessens our tension. Once we had to wait a week or half of month for news fro m home and abroad. But now in every moment messages are available from required person. So it is said that mobile creates r evolution in communicative sector.