I've ordered the M70 here on Amazon and by a lightning fast delivery I got it first paired easily with three devices; a Nokia Lumia 1020, Nokia E71 and Samsung Galaxy Note. 1
With the Nokia devices, the voice quality is excellent, the volume is very good; both with me and with the other party. In the Samsung I would call quality more so with 3+ - 4 mark. The M70 does not appear funzt with any phone or smartphone as good as already had noticed before me the reviewers.
I have a Nokia BH-607 and a Plantronics M55.
The most important point for me: the multipoint function. So far it worked always easy with all headsets and devices. Only over time can to my mind by the quality of voice calls; said also determined only depending on the paired devices is. The M55 in comparison is significantly quieter than the M70, which is sometimes a nuisance outdoors. The PLT M70 was to acquire a good choice; even in the car or in free telephoning is quite pleasant.
Subjectively, the M70 is a clear recommendation ....
Interestingly of course, the voice output in German; However, I also think that everyone can understand the English language edition of the M55 easily ....
