Hs: I bought this helmet reconditioned Amazon offers. I took advantage of a discount of almost 50 euros because the box was opened, but apart from a bit of tape on the packaging, you could not see the difference.
I put 3 stars, against the heart, because these headphones cost me an arm.
-For The price is expected to super quality. There nothing to say, at least for quality manufacturing. Very comfortable to wear, even if a little ugly, very comfortable, solid appearance.
-To Terms of audio quality, we find this quality in any other headphones at 80-100 euros.
-L'autonomie Battery is good. A day or an airplane in flight as usual. About 8 hours I would say. I'm pretty disappointed that an extra battery costs so expensive (over 30 euros).
-The NoiseGard is satisfactory but nothing more, when compared to Bose or even new to the market, Parrot (Zik), we say that we are still well below. They all have their advantages and disadvantages.
Speaking of Noisegard, I'm probably the only one to suffer from this, but when I active I have a headache for many 20-30 minutes. I also had that with Sony noise canceling headphones. You must not take account of that, I'm trying my whole family and they they had no problems.
-The SRS function is totally useless, I who did not "compatible devices" if I enabled it reduces the quality of my music.
-The Biggest disappointment was the jack. On one side 3.5mm and 2.5mm each other (if I'm not mistaken). This may be specified somewhere but I had not seen. I think it's really bad not to standardize.
Finally, I think that this helmet has big advantages but also flaws. Some that generate me more than others surely. I think especially that for now, the industry is not concerned with Bluetooth + + Noisegard Supra-Ear. So certainly in the top two in this area. (The other being the Parrot Zik, to see which one will be a good development for future versions).