This is the main unit only. Charging cables, communication cables, etc. are not included. Please prepare them separately. Basic operations have been confirmed. ・Wi-Fi connection ・Headphone jack output ・Charging and PC connection confirmed with my own cables 　Integration with Music Center PC software 　Music transfer (videos not confirmed) ・Music playback (speaker, headphones) ・Music playback via Bluetooth ・FM radio (headphones required as antenna) The above have been confirmed. It is an Android device, but the version is very old, so internet-related functions have not been confirmed. (I don't think you can use YouTube or download apps, etc.) The battery has not been tested. There was no rapid decrease, but it is a consumable item, so no warranty is provided. There are streaks on the display at the top of the screen. They are somewhat noticeable when the display is white (photo 5). There are no noticeable scratches or stains on the exterior. Please check the photos. Please research the detailed specifications online, etc. ★★★ Please provide feedback after confirming the operation (including charging). We will not respond to any claims after the transaction is complete, so please understand. SONY Walkman WALKMAN NW-F807 64GB