a legendary helmet

this helmet known in professional circles since the 80s, is a success and is an unmatched compromise for its moderate prices:
1) Compact: it folds in a clever way and fits easily in a bag
2) the sound is neutral, and although it lacks a density that have advanced the Sennheiser, it's very faithful.
3) according to the old owner is extremely solid
4) comfort: very light, and circum aural, it is comfortable, the only problem I noticed is the lack of depth headphones, the pinna home affects the inner membrane (Sennheiser is better)
But it is not for nothing that he is the benchmark in its class.