This is the SONY WH-1000XM5! I bought it new on the day it was released. I'm selling it because I no longer use it. Power, connection, and music playback are all working fine. The battery doesn't seem to be degraded, and you can still use it for a long time. The part that adjusts the length has become a little loose due to aging, but it works fine when wearing it. However, the zipper on the case is broken and cannot be opened or closed, so I recommend preparing a separate case. The main unit can still be put inside. Please judge the condition details from the photos. Please note that we do not accept returns. Please comment before purchasing. Please refer to my profile. Slight price reductions are negotiable! Please feel free to ask if you have any questions! Thank you. - Model: 1000X series - Color: Black - Shape: Over-ear - Design: Cushioned ear pads Thank you for viewing. Sony Model name...WH-1000XM5