The Koss UR5 is a portable stereophone that delivers the full Sound of Koss. With great sound performance, it is ideal for listeners seeking ultra-light headphones that doesn't interfere with their fashion sense. The UR5 is equipped with dynamic elements for an extended frequency response. It features an over-the-head design with contemporary styling. Perfect for use with portable mp3 players or ipods,it includes a straight single-entry four-foot cord. A 3.5mm (1/8") plug, L-shaped to minimize cord stress, is included.