This is Sony's noise-canceling in-ear headphones, the "WI-1000X." At the time of its release, this product boasted top-of-the-line noise-canceling performance, was equipped with "DSEE HX," and supported "LDAC," allowing users to enjoy high-resolution sound quality even wirelessly. It received a VGP Gold Award. As far as I can tell, all accessories are included. I used radius deep mount ear tips, which are known for their high sound isolation, instead of the original ear tips. As a bonus, I will include a carrying case (third-party) and extra radius ear tips (new). This product is a parallel import purchased from an audio specialty store, but I will include a printed PDF of the Japanese instruction manual downloaded from the Sony official website. (The text may be a little small, but it is readable.) After purchasing it, I was impressed by the immersive noise-canceling and the high-resolution, energetic sound typical of Sony, and I used it as my main headphones for about two or three months. After that, I only used it occasionally to compare it with wired earphones and noise-canceling earphones from other companies, so the frequency of use was low. From the time of purchase, there is a slight dent on the upper left of the outer and inner boxes, and some of the lettering on the main unit is smudged, but there are no noticeable scratches otherwise. In my subjective opinion, the overall condition is quite good and it is a beautiful item. However, there may be minor scratches and corresponding aging due to use and storage. Before listing, I updated the software to the latest version and reconfirmed the operation. I confirmed that there were no abnormalities in the battery drain and that all buttons responded without any problems. Listening to the energetic sound again after a long time, I honestly feel reluctant to sell it, but it would be a waste if I didn't use it more, so I hope that someone who will take good care of it will purchase it. I will disinfect and clean the entire product before shipping, and ship it in simple packaging. Thank you for reading to the end. Thank you for your consideration.