3 pairs of Audio Technica ATH-M30 headphones and extension cables.

All are used but in good condition. I have used them in my studio in the live room. They provide reasonable isolation but not too much that the musicians can't hear what they are doing. Would suit a small home studio setup.

While they have been superseded there are still plenty of reviews still online if you search.

The are working well. I have just tested them prior to listing. The cable is 10ft long with a 1/4" to 1/8" adapting connector. Also in the auction is 3 20ft long extension cables that have your standard 1/4 TRS connection and going to 1/8" female connection.