Professional dynamic stereo headphones, the MDR-7506, offer high-quality, clear sound. - Model Name: MDR-7506 - Brand: SONY - Type: Dynamic Stereo Headphones - Design: Over-Ear - Usage: Professional Thank you for viewing. I am selling these as I don't use them much anymore. Operation has been confirmed. There are some minor scratches from use, but they are not very noticeable. As expected of studio monitor headphones, the sound quality is excellent. I am not offering a discount. Thank you for your understanding. To prevent trouble and product substitution, I do not accept cancellations after the product has been shipped. Thank you.