Good quality / price ratio despite a few flaws

I bought it mainly for use for the radio from the phone manufacturers have decided that moving to 4G meant the end of the fm radio (and frankly streaming radio, it's really not the point for now). I was looking for a smallest possible device. Ideally I would have preferred an apple nano 6g (the tiny square with LCD) but I do not understand why Apple decided to stop it out by following the larger models ...

the +:
- Its amazing good for a no-name unit (with my personal JBL headphones and not the one that came of course).
- Very small and light: it is forgotten now.
- Pretty well finished for a no-name (real aluminum for the body)

the -:
- No valid instructions (it tells you right on a postage stamp where the screen, headphone jack, control pad, sic ...)
- Non-intuitive interface and unnecessarily complicated. menus not always explicit. I managed to memorize one station but I do not know if I can memorize more because there is no menu to find your memory: you press 1 key to recall the last station, that's all. For playing MP3, ditto. We must seek to enable random play, or otherwise. I do not see how people are doing to make multiple playlists even if it seems possible.
- No volume button: you have to go through a menu to change the sound ...
- The battery indicator is very fancy: how many times we go in thinking that the device is loaded and almost 20 minutes later, it turns off because the battery indicator rose from 80% to 0 almost at once .
- Finally it's a detail but the patera is upside down so when you hang the unit on a pocket, you still have the screen upside down.

In conclusion, it is still worth considering its price.

Edit: in response on autonomy, it is rather disappointing. Approx 3 hours to buy, she quickly dropped to about 1:30. After that it just be very different from one device to another.