Sony Walkman WM-EX633. There are scratches and dirt. I was able to confirm power on with a single AA battery, but it did not work. I have not checked with a gum battery. Therefore, the operation has not been confirmed. Please check the condition in the images and make your judgment. Due to the above condition, I am selling it as junk. Please purchase only if you are okay with this. If you have any questions, please feel free to comment. To prevent trouble, please purchase after you are satisfied.