I buy one every 2 years ... when I lose or when I stupidly breaks the clip (which is very useful to me when I run) ... otherwise I've never seen one make the soul! Tip: For powerful sound, you must go to settings and tick the box "rest of the world" if the sound is restrained. Obviously, the supplied headphones are of poor quality and as always, regardless of the type of unit purchased: expect a few euros in its budget to pay for the result to be grandiose. Version 4 is ample go to line their ears cheaply. (Possibility to expand the memory if desired via a micro SD slot).