Noise isolating professional studio headphones The first dynamic headphones to deliver true full frequency, high fidelity performance Standard-setting design incorporates performance-enhancing technology Superior isolation, accurate sound reproduction and the excitement of a live performance with every recording Durable steel and generously padded rubber headband Adjustable slide bars ensure snug fit 8 foot coiled cord with 6.3 mm (1/4') plug Covered under the Koss Stereophones Limited Lifetime Warranty