Listen to nice music

I bought this product because I wanted to try it up and running to the announcements
Runtastic the app to hear. I do not like with cables while running because I disturb the headphone cable when
her around schlackern.
The headset is a bit bigger than I expected, but keeps quite well in the ear without falling out.
One sees, however, that is not the best, the quality of workmanship in the price but not surprising.
The sound quality is pretty bad when playing music in order, however, when making calls.