Packaging is very chic I think.
After opening the box, I see a kind of egg with a carabiner.
In this box folded my headphones (that remind me of a fetus, sorry for the comparison)
In a small pouch two cables: one to be able to talk and connect on a second basic phones and a little thicker.
I do not know much in "his" but I can say that what comes out is just perfect.
I hear all the sounds of my favorite songs and my music.
I have little outside noise (much like I was actually in a shell).
Really nice to listen to. I'm not too tight either, not at all. I have no feeling of tightness. The port is nice.
I can speak through the small rectangle when my special phone cord is connected.
And with it I can put my music paused. I would not have been against my tracks forward or backward, or increase or decrease the sound (that I do the phone).
This is frankly a very good helmet.
Ideal for transport because not parasitized by outside sounds. And it is not heavy, it's super important. And it stays in place and does not slip.