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Sennheiser HD 559 Over-Ear Headphones – Premium Sound and Comfort The Sennheiser HD 559 open-back over-ear headphones deliver natural, spacious sound and ergonomic comfort, ideal for home entertainment and extended listening sessions. Key Features Open-back design for natural, spacious sound Sennheiser proprietary transducer technology with Ergonomic Acoustic Refinement (E.A.R.) design Comfortable, large detachable ear pads and broad padded headband for long listening sessions Contoured bass response with clear, detailed audio reproduction Attractive contemporary design with durable build quality Detachable 3 m cable with 6.3 mm plug for versatile connectivity Experience Superior Sound and Comfort Rediscover your favourite music with the HD 559’s open-back design and high-quality Sennheiser transducer system, delivering deep, contoured bass and crystal-clear sound. The large, soft ear pads and padded headband ensure maximum comfort during long listening sessions. What’s in the Box? Sennheiser HD 559 headphones 3 m detachable cable with 6.3 mm straight plug Specifications Colour: Black Impedance: 50 Ω Sound Pressure Level (SPL): 108 dB SPL (1 kHz/1 Vrms) Total Harmonic Distortion (THD): Frequency Response: 14 – 26,000 Hz