all mp3 players

I've been waiting a long time for an MP3 player and after spending a lifetime looking at the many there are, I finally chose this one. I chose it because I liked the shape of it. It's easy and comfortable to hold. The only reason it got 4 stars and not five is because:
1)The headphones it comes with you shouldn't even try to use them. But then again, I was already planning on using my other ones.
2)You can't upgrade it. The memory that it comes with is it, there is no place to put a memory card in.
Other then that, it is wonderful. The carring case looks good and has no problems that I know of but I have never used them, I just put it in my pocket. I used to have a regular CD Player before this and it was so big and bulky I couldn't carry it around. Now I can have music anywhere I want because it is so compact. I use MP3 files and can hold between 20-25 songs. It all depends the size of the songs. You can also use WMA files but I don't know how to use that. The sound quality is great! With a large download into the MP3 Player, the battery life will soon diminish. But it does come with a battery charger. Although I was very dump and put a non chargeable battery in it and it spilled battery acid everywhere the first day I got it. The battery it comes with is rechargebale. It is a great MP3 Player and should serve most people's needs.