The phone is a communication tool that helps shorten the period. In the communication of the modern era. At present, mobile phones have influenced the lifestyle a lot. Teenagersuse the phone in communication and entertainment .But Mobile influence mood, as the impatience impatient indiscretion. Also affect health and reduce concentrate in school. The correct behavior of teenagers using the phone. Adolescents should be aware of the pros and cons to it. Modify phone use them properly.