Koss's miniature portable earphone, affectionately dubbed "The Plug," makes use of an ear-cushion material (similar to that used in sound-blocking earplugs) that slowly expands in your ear canal to provide a custom fit and maximum sonic isolation from external noises. A detachable, extrawide headband makes these Koss-termed "stereophones" easy to carry or store. For...
“The first thing you are going to notice about your Pistons, is that these babies are absolutely gorgeous. I'm not talking about that these headphones simply look nice (although they do) - they are, without a doubt, the most beautiful headphones I have ever had the distinct pleasure to rest my eyes upon (regardless of price group). This extends far beyond the actual headphones themselves - the...” --Rashmosh