This is my second MP3 player; the first one was bought through ebay, the spec sounded good but the performance was poor; 4 hour battery life, headphones packed up within two weeks and the jog button failed after one week!
This one has proved to be far superior, and easily worth the extra 20 quid or so.
The size is 65mmx35mmx12mm.
The package came with an flexible arm band, a plastic holder with a belt clip, line-in cable, usb cable, software disc and multi language manual and 1 x AAA Battery.
Operation is easy, after loading the software, you can either use the supplied media manager/player or simply drag and drop either your MP3 or WMA files.(Or any other type if you want to use it as a portable data device.)
There is an easy to follow menu system; under the music option you can select normal play, shuffle once, shuffle folder. The player remembers the last track you played and starts playback from there. You can also select from 5 EQ settings, classical, pop,jazz,custom or normal.
The Radio function I found surprisingly good. I found 12 stations with generally good sound from the best eight. You can also use it as a voice recorder and you can even record from any line-in source with instant MP3 encoding.
Battery life is also very respectable, I am getting around 14 hours from a re-chargable AAA.
The headphones are the expected in-ear type, which I find comfortable and secure.
Last but not least the sound quality is in my opinion first class.
Learn from my experience; leave the cheap ones alone, this one is so much better for little extra outlay.