My favourite piece of technology is the mp3 player because i can put all the music i love in there and bring with me in almost places. This piece use a little bit of energy, is very cheap and serve to you for save pictures, recordings and other kind of archives.
I got my first when I got approximately 13 years old and since this age I used and I got one regularly but not in a dependent way (for example i haven't one in at least 5 months, and i was enjoyed that) because i think that the things are for we can use with love and for we can leave too, easily.
I like the mp3 player too because is a little thing and can contain personal immensity.
Well I think the life can be some different without them but not to much (many people save the music and the other things in the mobil phone) and in other way I believe maybe too we will have to sing more or whistle or go to more concerts for cover this need if this piece don't exist (and listen more our environment) and that it would ok!