After a relentless pursuit of a powerful headphones, closed, listening to iPod, with the desire not to be injured on bass without either distorted the original sound, it is a good compromise (ratio price / quality / performance ) I am happy to have this. The cord on one side makes it less sensitive handling, the spiral side after a smooth start on the earpiece gives a professional look 'dj' without hindering the nomadic habit and congestion on soi.Par Moreover, far from being fragile, it fits easily in a flexible and rigid box with both the thickness headphones very spot réduite.La -32db reduction is verified on the outer nuisance without affecting pedestrian safety. So no hesitation for this musical product, efficient and aesthetic!