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allows the SB45 USB noise-reduction microphone to eliminate excessive background noise
collapsible unit
Equipped with a noise cancelling microphone that eliminates excessive background noise for greater ease of use
Enjoy 24bit/96kHz high fidelity audio with the built-in DAC
Keep On-Ear and Over-Ear Headphones in multi-user environments like hospitals
A/550 Feature_Volume Control allows the SB45 USB noise-reductionThe 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,
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