This Sony Headphones are in very good condition (I could say that in mint condition) and it works perfect (right ear channel and left ear channel sound good) and comes with the original owner manual. I bought it some time ago in an estate sale from a profesional pianist and I don't use it. This headphones are good for certain genres, where the bass is soft and quiet, don't try listening to EDM or hip hop on these.
You can still try applying some EQ to the bass. It is a perfect gift for this Christmas to an audiophile! If you need another information let me know and I will answer you asap. The item "Sony headphones open air model MDR-F1 in mint condition very hard to find in USA" is in sale since Monday, November 29, 2021. This item is in the category "Consumer Electronics\Portable Audio & Headphones\Headphones".
The seller is "morasso123" and is located in Hialeah, Florida. This item can be shipped to United States.