all kinds of information, to the affairs of state, small to personal, through which we can find a place to find, through which we can record our happy and unhappy time, through which we can not out of the house is sold, can be heard whenever and wherever you want to listen to the song, let us too lazy to go out when also can have a meal, is very convenient. Also, people in the mobile phone also lost to pany of relatives, let us less language face to munication, also let more and more people e myopia, wear myopia glasses, let us the chance to exercise more, less or even more people use cell phones as game consoles, staring at it all day to play, can't focus on their work and learning; I want to say love for cell phones we enough is enough, let it e our tool rather than a bomb of our lives.