Designed for the active wearer, the KSC7 eliminates the need for a conventional headband by clipping easily and comfortably around the ear for a secure fit. Ultra-lightweight, it fits easily into any travel or workout schedule. The KSC7 is portable enough to fit into a briefcase, knapsack or pocket, for travel or active use. Active lifestyles raise the expectations of comfort, convenience and sound performance. Adding a sleek and compact carrying case to this already popular and impressive sounding portable has not only increased its value, but has exceeded expectations. Incorporating a neodymium iron boron magnet and oxygen-free copper voice coil, the KSC7 delivers a frequency response of 50-20,000 Hz. Made of a soft, pliable rubberized material, the KSC7 provides maximum comfort during long listening sessions. A 4 foot straight cord and L-plug allows easy movement and reliability when used portably. The KSC7 delivers great value as a first time or replacement stereophone purchase, and is covered by Koss' No*Questions*Asked Lifetime Warranty.