Do we need a mobile phone? Certainly, in our time, this issue is very important to us. Today, many of the people can not imagine their life without mobile phones. With their appearance, life is much simpler. Previously, people could only communicate by landline phone and could not use it on the street. For parents, this is a good opportunity to know at all times where their child, but they also believe that it is harmful to the health of their children. Of course we need a mobile phone, since we live in the 21st century is the century of new technologies. We must not keep up with the world and enjoy the things that simplify our lives