The black piece on the headset is weathered and the padding inside is breaking apart. The product is a pair of vintage Koss Pro-4 headphones. These headphones are from the renowned brand Koss and feature the model number Pro-4. They are considered vintage audio equipment, appealing to enthusiasts looking for classic sound quality and retro design. The Koss Pro-4 headphones are known for their high-quality audio reproduction and durable construction, making them a sought-after addition to any vintage audio collection.
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