happy; o)

I had the M55. After first supporting problems (the plastic cover me pulled the skin of the ear, but I did not want the temple. Eventually it went away and I forgot that I had the Haedset ear.) Was this very good quality. Sorry, but I got my interlocutors not eventually be able to understand. I suspected that lies at the new smartphone.

Then I used other headsets that I had lying around here. But it was not satisfactory.

In ener recession of Plantronics then a user wrote that he uses it with a Nokia Lumia 1020 and is satisfied. I have the Nokia Lumia 925 and Lumia 535 Microsoft have thus dared to test.

And now I'm also back more than satisfied. Very simple, super voice and audio quality.
The M70 sits here even better than the M55.

Strong buy recommendation !!