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...
50mm-55mm Headphone Earphone Earbud Ear Pad earpad Foam Cover * Brand New & high quality * Balanced density, flexibility * Elastic, comfortable and durable * enhance sound quality,Noise isolation * Fit most earbud-style earphones with 50-55 in diameter. Diameter:25mm 30mm 35mm 40mm 45mm 50mm 60mm Material: foam