The piece of technology that I use more

Hi everyone, today I should talk about my favourite piece of technology, but I don`t have a favourite piece of technology. So I'll write about the piece of technology that I use more.
The piece of technology that I use more is my mp3 that my sister gave me in Christmas. Before, I used the Gonzalo's mp3 (my old brother) but it was marred.
Now, I use my mp3 to listen to my favourite music, transport files and photos. And I use my mp3 when I going out and when I go to class, so I use to use everyday, all the week. But in my home I don't use it because I have the laptop who replaces his role (listen to music).
I like my mp3 because is very practical and comfortable to transport, so I can listen to my favourite music anywhere.
My life without my mp3 would be equal, but my travels in Transantiago would be bored. This caused me to think in the dependence that the people have in the technological advances. Now, the people give a big importance to the technological advances in his life and I think that this is terrible because they debt to buy the I-phone or a I-pad for example and we don't think about the more important problem. We have to change this situation and no depend all our life in the technology.