Califone Beige Stereo Headphone fits PC or Mac systems and is used for music appreciation, ear training, music theory and multimedia applications. The 10 oz durably designed headphone includes an individual volume control on ear cup, a permanently attached 6 ft straight cord with 3.5 mm plug, a padded, adjustable headband with foam filled replaceable ear cushions and 1/4 in screw-on adaptor..