Califone's most popular model headphones! Switchable Stereo/Mono Headphones are ideal for monaural language applications and stereo needs of computer workstations; Individual volume control for customizable preferences; Adjustable and padded headband; Ambient noise-reducing earcups blocks external distractions and keeps students on task; Made with rugged ABS plastic for durability; Cleanable and replaceable cushioned leatherette ear pads; Dual plug sizes (3.5mm with snap on 1/4” adapter) to fit any media player $16.50