Frequency response: 15-25,000 HznTitanium-coated high-polymer titanium diaphragm for accurate sound ReproductionnFoam ear cushions for open u0026#34;hear throughu0026#34; soundnVolume control on cord for easy level adjustmentnStraight, 4 foot, dual entry cord with 3.5 mm plug and 6.3 mm adaptern