Mobile Phone

Today ,hardly everyone have mobile telephone . And many different kinds of mobile telephone already have been sell .I think maybe should have a lot of different kinds of mobile telephone will be invent with more and more function be find out too .
The mobile telephones have much different kinds of advantages ,at the same time the mobile telephones have much different kinds of disadvantages .
Today ,a lot of students areadly had mobile telephone .Much students will have used it surf internet on their class .Some students will have used it watching movie and senting massages on their class .So ,I think it is very dangerous for their study .A lot of students have taken photoes of somebody 's secret and send it out .
Of course ,there are a lot of advantages of mobile telephone .Today, mobile telephones have made displacement decrease .When you are very busy ,you don't have anytime to see your familys or friends ,you can call your familys or friends .So that they are know you are very miss them.
When you have left your family and very far . Sometimes your familys want to aske some questions to you ,but they are not tell you in time , so at that moment , they can use mobile telephone to call you .
So I think sometimes mobile telephone is good for you or is bad for you .How about the reason ,it is up to you.