This is an AKG K240MKII headphone. As a bonus, I'm also including an Audio-Technica AT-HPH300 headphone hanger. I bought the headphones 5-6 years ago, but I didn't really like the sound, so I used them for a few months and then stored them. There may be some minor scratches, but there are no noticeable major scratches, and overall they are clean. These headphones have a detachable cord, so even if the cable breaks, you can just replace the cable. They are also quite lightweight, so they won't hurt your neck. The spare velour ear pads and the coiled cord in image 4 are unused. As shown in image 10, a standard plug is also included, so I will attach it to the terminal. I checked the sound before listing, and there are no problems with the left and right channels. It's a clean, monitor-like sound. It didn't suit me, but I think it's a good headphone for creating music or playing musical instruments. I will ship via Rakuraku Mercari's Takkyubin service.