Well - Noise Reduction interpreted my speech as noise ...

I have long kept me away because of poor reviews of hands-free devices.
The Jabra device but made a solid impression, and it was supposed to mean that employees of Jabra
develop something not for the first time ...

I'm using the product now since about 2 months.

The connection in the car works practically always without problems and also the use of Siri for entering destinations or name to call (using an iPhone 5s) works as you would expect from Siri.
The voice quality evaluate the called party as well and the intelligibility of the called party is also consistently good.

But ...:

Unfortunately, says pretty much everyone called, he can not understand me well and the phone is very tedious. This probably seems to be due to the noise reduction, which simply filter out many parts of the telephone conversation while driving. Unfortunately, it is not only noise, which is filtered out, but also a lot of language.
I have got used to speak very loudly. Then tell the person being called on far fewer dropouts.

So perfect is different ....