I strongly support the use of personal electronic devices in learning because we can’t miss its definite advantages.First of all, they can be used for both research and study purpose. Students can access Internet to download data and store information and textbooks, which save amounts of money for paper books and time. This also means their backpacks are lighter but contain bigger data.Secondly, modern technology tools improve their study results because of a wide variey of useful learning applications on smartphones, laptop, tablets and other media players such as dictionary, spelling, translation, pronunciation and other apps. These apps are not boring but exciting them with colorful designed-courses, funny methods and attractive contents. Furthermore, students can study any time, anywhere as long as their devices are connected to Internet. Last but not least, smartphones help students communicate with each other or relax by listening to music and playing games when they are bored or tired of studying. All types of entertainment are now combined in a small portable equipment, which is convenient for the owners to relax anywhere. In conclusion, personal electronic devices bring more benefits than harm to students. I suggest that teachers allow and encourage the use of these devices in learning both inside and outside of class.