※Please read the profile before purchasing. I bought this new, but I'm selling it because I don't use 3.5mm much. I used it for about a month, and it's in good condition. I've confirmed it works with an iPhone 15 and a C to A adapter on Windows (I haven't tested it with a Lightning adapter or Android because I don't own them). (I haven't used DSD and MQA, so I haven't confirmed whether the lights turn on.) The condition is based on my personal assessment, and since it has been in someone's hands once, please check the images carefully and make sure you are satisfied before purchasing. If you want to check any specific parts, please comment, and I will add more photos. Please understand that this is a used item and an unsupported product, so no claims or returns are accepted. Please purchase only if you understand this. ※To prevent trouble, those with many negative reviews or no transaction history will be cancelled, so please refrain from purchasing. https://ifi-audio.jp/go/go_link.html