beyerdynamic DT 1770 Pro Studio Headphone Closed studio reference headphones for mixing, mastering, monitoring and recording, Made in Germany 250 ohms, 45 mm dynamic Tesla neodymium drivers Single sided, detachable cable with mini-XLR connectors Soft, replaceable ear pads and headband for long studio sessions Delivery contents: 2 ear pads (velour and leathrette), 2 cables (coiled and straight, 3m), Premium carrying case.Headphone frequency response:5-40,000 Hz