content: The first set I ordered and received worked fine for 2 days, then the volume control broke. Amazon gave me a return label and sent a replacement set within a week. The second set had no sound in the right ear. I called Amazon and was told that perhaps there was a problem with the manufacturer and to return both items for credit. Friends have this same headset, ordered 2 years ago, and it still works fine, so perhaps Sony has changed manufacturers. Don't waste your time or money.