Vintage Koss K/7 headphones from 1975, mint condition in original box, with manual/brochure, Koss headphone product brochure, and accessories order form. They appear to have never been used, padding is still soft and supple. See last photo for specs. They have been tested and work well.

Payment is required within 3 days of end of auction. 

Happy bidding !!

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The items that I sell on eBay were purchased at estate sales. I can not guarantee that they are from smoke free homes, or homes with pets. If you are sensitive to certain scents/smells, please consider this, when placing a bid.