The favorite piece that I love is one mp4, is one thing that can play music and movie is very portable, because it can save files, my MP4 is very old, it has many age wiht me, have three years old from that I bought it in a store, in the beginning I do not knowed its usefulness because I was not need transport the information in the school, but today that I go to university walk with me every day, is very useful have a MP4 because I need save a lot of digital information and documents. My friend has the information online through a program, it is very easy and practical, but I think that in a any moment he will not have internet, he will not download your information, but I have my MP4 I will not pass me that.
I use the MP4 as one relaxing and environment separator, because that helps me to study the long hours before the test, and I can study in a noisy environment that easily distract me, I would not know what to do without the MP4, because is very important for me.