I'm selling these because I felt the price didn't match my usage environment. I purchased them on the release date from the e-earphone online store. There are no issues with the operation. There are no missing items. I used them for a few hours as they were, and then I used them with a headphone cover. I think I used them for about 20 hours. I mainly used them indoors, and I used them for about an hour while walking. I will also sell the headphone cover together. If you don't need it, I will discount it by 2,000 yen. Please consider this item as a used product, and understand that before purchasing. The following is an automatically generated description: Black wireless headphones with high-performance noise-canceling function. - Model Name: WH-1000XM6 - Brand: SONY - Accessories: Charging cable, carrying case - Color: Black - Features: Noise-canceling function Thank you for looking.