Perfect ... because of the constant interruptions but unfortunately not to use all :(

The sound is of Oberhammer, suuuper! The couple to my Nokia Lumia 820 also went smoothly.
The headset fits perfectly the way and that was also adjust not too difficult.
The range is, as already mentioned in other reviews, with about 4 meters not get very far.
While the sport I have this very short interruptions, which are also mentioned in other reviews, unfortunately. As long as it is kept within limits, thus occurs every 10 minutes time, I can live with it. I also give no punk deduction for it because it might indeed could only be connected to the external conditions ...

The manual is the generic joke! But as mentioned already in other reviews, you need it really at all.
But funny to read them is already ;-)
As the unit is self-explanatory, I also deducted no star because of the manual.

Addendum on 11/08/2013: The device itself is really impressive! Unfortunately, these short drop increasingly, sometimes every minute. And surely that is too much. For safety, I have tried the headset on other smartphones. There was the same. So it must be on the headset. Too bad, because the sound is like saying the hammer. I'll return the device. Also therefore a shame because there is no alternative to sweat resistant devices in this price range.