One, I think, useful additional information

I just got my headset and of course tried immediately.
It works perfectly! It easily connected to my cheap China smartphone. The voice quality is 1-A, the manual easy to understand. A super value for money!
I would buy it again at any time.
What interested me, but unfortunately nowhere mention is: how far can I remove myself from my phone and the headset is still working?
I have in this regard on the phone with a very friendly man by the provider:
The headset works up to a distance of 10 meters.
This supplementary information that I wanted all those who draw the acquisition this headset into consideration announce.
From me only 4 out of 5 stars because I feel it in the long run than a bit disturbing in / on the ear. But that may be due to my ears, which are quite small.
Addendum: After I have the great earloop replaced by the small and the headphone cover to that without this "strap", is no longer spühren the headset.
Unfortunately, the smaller ear hook is. Kaputtgegangen after about 30 minutes and without that I made anything. Here, I give my Vorrezensionen right: the ear hook is really bad quality!
I use the headset now without bracket with the smallest phone cover and get along well with them. For joggers probably not suitable, but since I do not jog .... ;-)