Professional open-back headphones that are optimized for mastering and critical listening and provide full-range audio with detailed highs and rich bass in a sleek, attractive circumaural design. They are equipped with 40mm neodymium drivers, replaceable velour ear pads with high-density, slow-recovery foam for exceptional comfort and premium, fully-adjustable padded headband with steel frame that offers hours of listening comfort. Their open-back design ensures an exceptionally natural sound, wide stereo image, and increased depth of field. The headphones are impedance optimized for direct connection to wide range of portable audio devices and individually tested and serialized. They are supplied with two dual-exit oxygen-free copper cables with Kevlar reinforced jackets and gold-plated MMCX connectors, providing secure connection and detachability for easy storage or replacement. Included hard zippered case, replacement set of velour ear pads and threaded 6.3mm gold-plated adapter ensure years of uninterrupted listening enjoyment. Cable length: 2.1 m (each). Frequency range: 15 Hz-27 kHz. Impedance: 37 Ohm.