I'm selling this because I haven't been using it lately. I bought it new two years ago. It's a Bluetooth model. All the original contents are included. I think the battery hasn't deteriorated much because I've only used the Bluetooth connection cable a few times. The 3.5mm headphone cable is discolored due to aging. The main unit is clean, but the edges of the outer box are scuffed. Furthermore, there is a tear in one part as shown in the image. Connection type... Wired/Wireless Series... SE Series Model... SE846 1st Generation