Professional reference studio noise-isolating headphones, superior closed-back, 40mm dynamic drivers deliver a wide frequency response (10Hz – 22kHz) delivering full bass and detailed highs, closed-back design ensures a comfortable listening environment Consistent, high-quality ear cushions attenuate up to 19 dB of ambient noise Compact, foldable design with comfortable padded ear cups and adjustable headband Optimized performance for use with a wide range of audio devices Comfortable coiled cable attaches extends up to 3 meters, integrated 3.5mm jack with 6.3mm adapter, includes carry bag.