Developed upon the same strong foundation of high accuracy and natural well-balanced frequency response of the SRH840, the new SRH840A Professional Studio Headphones are optimized for critical listening and studio monitoring. A precisely tailored frequency response and 40mm neodymium dynamic drivers deliver rich bass, clear mid-range and extended highs. A wide, padded headband combined with Shure durability provide the ultimate listening experience.Main Features:Precisely tailored frequency response delivers rich bass, clear mid-range and extended highsPremium, padded headband provides ergonomic fit for superior comfort over extended periodsClosed-back, circumaural design rests comfortably over the ears and reduces background noiseDetachable locking cable securely locks cable into ear cup and enables easy replacementLow distortion matched 40mm dynamic neodymium drivers offer natural and well-balanced frequency responseSleek, durable design looks great on camera and withstands the rigors of constant useIncludes detachable straight cable, carrying bag, threaded (6.3 mm) gold-plated adapter and 2-year warrantySpecifications:Driver: Type Dynamic, Neodymium magnetDriver Size: 40 mmFrequency Range: 5 – 25,000 HzSensitivity (@ 1 kHz): 97 dB/mWImpedance (@ 1 kHz): 40 Maximum Input Power: 500 mWPlug: Gold-plated 1/8 (3.5 mm) stereo plug with threaded 1/4″ (6.3 mm) gold-plated adapterCable Length/Type: 3 meters (9.84 ft) / Detachable, straight oxygen-free copperRemovable Ear Pads: YesCollapsible: YesWeight (without cable): 273g (9.63 oz)