Brand new Koss Stereo ClipOn Headphones "KSC75", Silver ref/365/am/ey/bb The revolutionary around-the-ear, side-firing design aims the element sideways into the ear canal to amplify sound quality and enhance bass Made from pliable, moulded rubber and designed for maximum comfort Voice coils made of oxygen-free copper provide for a clear, crisp sound Single-entry 4 foot cord will allow you extensive freedom of movement Super sensitive frequency range of 15 - 25000Hz