The headset is super comfortable, has a good sound both at the speakers, as well as for the other party through the microphone. Unfortunately, therein lies the flaw, which has now happened to me at two different headsets from Logitech. After some time (in this case, 1.5 years) works the microphone by the constant up and down keys, no longer in any position. Now, making a call without the micro-one depends, unfortunately, not in all of the folded-down position right on the nose, is no longer possible.
Too bad, because the product is really designed well and comfortable, but seems to be not suitable for continuous users. 5 stars for design and comfort, by the lack of longevity but 0 star for quality. Power for me 2 stars overall, if you still factored in the price.