The study used telephone attitude of students at five schools in the poverty cycle Trust Lampoon found that students at five schools in the poverty cycle Trust. Lamphun, most have the attitude that the phone has a warranty after service because of the youth of today do not maintain their property much. Most products are guaranteed to surpass that of the negligence of the user, such as a fall frequently. Battery degradation products are guaranteed to be in the range of insurance which the warranty period is one option that makes the most models a choice. Attitude, followed by the use of shaped phone that is easy to carry because most teens do not carry anything larger Another minor was to use a phone with support for 3G 4G and wifi because in. This generation 3G 4G and wifi are very important for the search. Follow us And use in communications applications and computer applications in. Another minor issue is to use the phone at a reasonable price compared to the quality of the phone in this price because prices are relatively high, some models cost more compared to the quality of the phone, so we should choose the phone. Good quality and affordable than the ability to buy them.