My favourite invention is MP3. I have had one for three years.. It was a present from my mother.I always listen t music on my MP3.
When I was a child I used to listen music on a walkman. Then discman. I bought it. I used to bring so I could listen to music when I was on the street.
Once time I fell down on the street and it broken. This gadget was bigger than my MP3 and less easy to carry. I prefer my MP3 than discman.