I did some preliminary research on this helmet and the opinions of experts who reported a quality headphone audio level so when I saw this quality at this price I did not hesitate long. And I do not regret that choice.
Pros: Simple design but efficace.Léger to wear and comfortable. The presence of two cables. The ambient noise really lessened and we can fully appreciate his music. The price and its high quality audio.
In short it fulfills all the criteria I was waiting for this helmet.
Negatives: I've not found for me :-)