AKG K712PRO. There are no issues with the sound. The ear pads were just replaced and are practically new. Comes with the original box. There are two issues: ◯ The transparent plastic guide on the right side is cracked (see photo 6). I didn't notice when it broke, and it happened without me handling it roughly. Conversely, it doesn't bother me during normal use, so I didn't notice it and continued to use it as is. I didn't need it, so I left it as is, but if you need it, you can search online, and there are people selling replacement parts, which you can buy and replace (around 1000 yen). However, like replacing the rubber, it seems like it would be difficult. ◯ The K712PRO originally comes with two cables: an orange straight cable and a black coiled cable, but the orange straight cable is missing. I usually used a replacement cable, so I didn't realize it was missing until I listed it for sale. Therefore, the only cable included is the coiled cable. The original 6.5mm adapter is included. The rubber band has stretched, but this is something that always happens with this series, so I don't think it needs to be specifically mentioned. Other than the above, I don't think there are any major problems, but please understand that this is a used item that I have personally used. What I will send is the main unit, the coiled cord, the 6.5mm adapter, the storage bag, and the original box. Thank you.