Thank you for viewing. I purchased this in May of last year and used it for about six months. Regarding the exterior, I immediately put it in a clear case, so there is no noticeable dirt. However, there is some blackening due to dust that entered from the gaps on the back. (Please check the images) The earphones themselves are in good condition except for some black dirt on the charging part. Please also check the images for this. They connect to the app without any problems. * The price is set higher due to fees. I have listed it slightly cheaper on Yahoo Auctions. * Please refrain from price negotiations.