Califone 2924AVPV Deluxe Volume Control Mono Headphones

Specifically designed for easy maintenance in heavy use classroom situations. Features adjustable headband with rugged ABS earcups and foam-filled, replaceable ear cushions. Dynamic drivers with 600 Ohm impedance. 1/4" Plugs for use with mono cassette players/recorders. Permanent 6' coiled. Comes with volume control. Weighs 9 ounces. 2 Year Warranty. Sold as Single Unit. Designed to hold up to continued usage in classroom settings. Adjustable volume and coiled cord with rugged monaural 1/4 inch plug. Durable, adjustable polypropylene headstrap and ABS plastic earcups. Noise-reducing earcups lower the ambient noise so volume doesn't need to be as high.