Koss Everywear KPH5 Portable Stereophone The Koss KPH5 is a portable stereophone that delivers the full Sound of Koss. Delivering great sound performance, it is ideal for listeners seeking ultra-light headphones that don't interfere with their fashion sense. The KPH5 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 dual-entry four-foot cord. A 3.5mm (1/8") plug is included. Built to last, the KPH5 is covered under Koss’ Limited Lifetime Warranty - the only warranty of its kind in the stereophone industry.