I purchased this about two years ago at K's Denki for around 9800 yen. I've used it about 3 or 4 times, and I bought a thin glass screen protector for the surface. It has been initialized. I don't think there's any particular battery degradation. It's a Sony audio player that I used to listen to various Japanese pop music on. It can also connect via Bluetooth. Operation has been confirmed. Overall, it's in very good condition, almost like new. The LCD screen is clean (I removed the protective sheet). The items in the photos are all that are included. Just the main unit. A genuine Sony charging/transfer cable is included. To prevent any issues, returns and exchanges are not accepted.