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With a dynamic element that delivers premium sound at all volume levels
these are stereo
collapsible unit
Keep On-Ear and Over-Ear Headphones in multi-user environments like hospitals
A/550 Feature_Volume Control With a dynamic element thatThe Koss A 550 Open Back Headphone represents the pinnacle of acoustic engineering and design. Meticulously crafted from premium materials including stainless steel, aluminum, ultra soft velour and precision stitched vegan leather, every detail has been considered to deliver unparalleled performance, durability and comfort. Koss engineered RLX44 54 ohm dynamic drivers specially designed for A 550 incorporate a multilayer polycarbonate diaphragm,
