Koss Sporta Pro Portable On Ear Stereo Headphone offer portability, flexibility, and a headband designed to be worn either atop or behind the head. Equally well suited for use at work or on a jogging trail.. Features include a Headband that Pivots Backward At Its Base, Easily Converting From Over-The-Head Style To A Behind-The-Head Style, Foam Ear Cushions - Collapses Into A Compact, Protective Package That Tucks Neatly In A Briefcase, Gym Bag Or Backpack and Includes 0.125-inch and 0.25-inch stereo plugs