Neodymium magnets and 40 millimeter drivers for powerful. detailed sound.Specific uses for product : Professional audio system.Home audio system Closed ear design provides comfort and outstanding reduction of external noises 9.8 foot cord ends in gold plated plug and it is not detachable; 1/4 inch adapter included Folds up for storage or travel in provided soft case Frequency Response: 10 Hertz to 20 kilohertz These large diaphragm. foldable headphones feature a rugged construction. a secure. highly effective closed ear design Connectivity technology : Wired -
