I use open headphones Koss (KSC-75) ear clip for quite some time, mainly to work the keyboard apartment. the comfort of the headphones allows to endure for hours without problems: no heating ears, no tower head or neck or irritating pressure. the sound is very realistic to the point that I must check often if I have not turned on the sound system so the illusion is disconcerting: we forget that wearing a helmet .. I also have a porta-pro but I am tired: less comfortable too low. Here there .. I love them! provided that the last generation! Their life is not infinite, however, usually 2-3 years in almost daily use before small resonant sounds appear. the simplest is alors..d'en buy a pair because they are not overpriced ..
