Califone Beige Stereo Headphone suits PC or Mac, used for music appreciation, ear training, music theory and multimedia applications in classroom. 10 oz. Rugged 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.