This is the Astell&Kern SE300. I'm selling it because I'm switching to a different DAP. After purchase, I used it with a protective film and the official case, so the condition is quite clean. It was difficult to apply the side protective film, and there are some bubbles, but there are almost no scratches on the main body. I've been using it for about a year and a half, but I used a more compact DAP for outdoor use, so it was mostly used indoors. I believe all the accessories are included. Thank you.