As we know , mobile phones bring people great convenience and shorten the distance among friends and relatives .   It bears a great many of advantages , but also some weak points .   Is it ? I've never thought of any disadvantages of the mobile phone .   For instance , the mobile phone seriously distracts the attention of people from work and study .   That's true . Some people pay too much attention to their mobile phones .   Actually , it's not the fault of the mobile phone . But people should have a proper attitude towards it . Mobile phone is a tool serving people , not the fetters restricting them . 