The SRH1540-BK Premium Closed-Back Headphones deliver superior acoustic performance, comfort, and durability to professional engineers, musicians, and audiophiles alike. The SRH1540 utilizes 40 mm neodymium drivers for an expansive soundstage with clear, extended highs and warm bass. Developed with aluminum alloy and carbon fiber construction, the lightweight and durable design also features Alcantara ear pads for maximum sound isolation and comfort.and the included storage case, replacement set of Alcantara ear pads, replacement cable, and threaded adapter ensure years of uninterrupted listening enjoyment. Ideal for professional audio engineers, discerning in-studio talent, and audiophiles with the large 40mm neodymium dynamic drivers deliver extended frequency response from 5 Hz to 25 kHz for an expansive soundstage with clear, extended highs and warm bass Closed-back, circumaural design rests comfortably over the ears and reduces background noise Lightweight construction featuring aircraft-grade aluminum alloy yoke and carbon fiber cap for enhanced durability, steel driver frame with vented center pole piece improves linearity and eliminates internal resonance for consistent performance at all listening levels Ergonomic dual-frame, padded headband is lightweight and fully adjustable for hours of listening comfort Oxygen-free copper cable with Kevlar-reinforced jacket for superior performance and durability, dual-exit cables with gold-plated MMCX connectors provide secure connection and detachability for easy storage or replacement Gold-plated 3.5mm TRS stereo mini plug with 1/4" adapter for wide compatibility with mobile devices, audio interfaces, mixers, and more Replaceable earpads made with Alcantara and low-density, slow-recovery foam for exceptional comfort Includes spare earpads to ensure long product life Zippered, hard travel case protects headphones when on the go or not in use