How to choose your MP3 player
If you want an mp3 player, you can choose between mp3 players with flash memory, mp3 players with hard disk, or you might choose a more complete solution such as a smartphone, a cellular phone which can also play mp3 files.
Flash memory players are cheaper and smaller, but often they have less memory and cannot store as much music (or audio guides) as hard disk players. Hard disk players have huge amounts of storage allowing to keep hundreds of songs on just one player. Nowadays, they often offer to see videos, too. The drawback is that hard drive players are more expensive and the hard disk risk to break down.