Koss Stereo Earbuds 4 Ext Cushions - PLUG

The Plug earbud is the first of its kind. It delivers accurate acoustical reproduction and unbelievable isolation typically found in more expensive closed-style stereophones.The Plug features a dynamic element that is positioned just outside the ear and connected to a tubular port structure that is inserted on a soft expandable cushion into the ear canal. The soft foam cushion expands for a custom fit to improve isolation and enhance deep bass and treble clarity. The Plug features special ear cushions made of hydrophillic formed urethane for a custom fit each and every time it is inserted into the listener-s ear. The custom fit enhances isolation when you want to plug out ambient sounds that interfere with the listening experience. The Plug has a frequency response performance of 10-20 000 Hz and full Sound of Koss. Combined with your favorite music and a portable sound system it is the ultimate accessory on the go.