Bought at 40. Very happy. The sound is very balanced and crystalline. The bass will "dépotent" not, but are present and pleasant. This is clearly not a typical helmet "boom-boom" for jeuns :-) I use my smartphone (extra) and evening with the TV. Well it feels different sounds and atmospheres movies. Well finished helmet, light enough and well insulated from outside noise. I hope he will be reliable, some people who testified problems.