onso 05 mmcx version, 3.5mm 3-pole plug. Used for several months after purchasing used on Mercari. My usage time is around 50 hours. Overall, there are no noticeable scratches or deterioration, and I believe the condition is quite good. As a point of caution, the plug has been changed from an L-shaped type to a straight type by the previous owner. There were no issues with the sound output, and I was satisfied with its use, but I am downsizing due to an excess of equipment. Ships from Hokkaido with prepaid shipping. Feel free to negotiate the price. Thank you for looking.