The sound is really stunning!

I will not go through all the comments that praise this Bluetooth headset and which are true.
The sound is of a very high quality, though for trying a 300 quality headphones are not the same. But for the price it is really negligible. I do not regret my purchase. It may be noted, however, as has already been said that the bass are perhaps a little too present (after it's also a matter of taste)

It may be added that there is no mute. Tested primarily with my Nexus 5 and 10 my nexus but also with other devices.

Just a little flat I saw out of the box, is that in the picture, it seems that the helmet is made of metal, such as 300 ... but that is not the case SINCE it is hardly in plastic ... good indeed.
That said, given the price is normal and once you have it on the head, we do not see it. And even if it is plastic, I retract none of 5 stars I've assigned to it because the price, sound quality and transmission apply them widely.

This headset is intended for all those who wish to have a good helmet without bother with son and does not want to spend hundreds of euros.
Ruez you manage to buy it before it increases or price, or it disappears ...

Pairing is fairly intuitive and if the seller sends you the instructions via email upon shipment of the helmet then this is perfect.
Also note that you can change the language of the helmet (as it indicates if it is on, off, paired ...) and that French is available!

I have not yet tested the phone mode ... but for me if it does, is that for most of the headphones to less than 22.

I took the blue helmet and it is really beautiful (even plastic ;-))

Edit 11/30/14
I tested the phone by chance when I was listening to music. It was very comfortable for me since I heard my interlocutor perfectly (I was more in this kind of place where children play on inflatable games) and I was also of course.
Perfect!