Purchased in March 2019 and used for about six months. I'm currently using other earphones as my main ones, and I haven't used these recently. These are wireless earphones that allow you to adjust the equalizer settings from the app. The sound quality is quite good, and the volume settings are also fine-tuned, so I think people with good hearing will like them. The case has some signs of use, but the earphones themselves are clean. The original price was 38,704 yen, but since I used them for six months, I'll lower the price for sale.