Purchased used in June 2023. I have only played one game on it due to my circumstances. The previous owner's play time is unknown, but considering the battery drain and operational feel, it doesn't seem to have been used much. [Please note] Previously, some liquid spilled on it while it was placed on a desk. I've used it recently and found that: - All buttons (including the back buttons) - Both sticks - Gyro function - Both trackpads - Headphone jack - Steam button and other 4 option buttons - D-pad All work without any problems. *The included AC adapter is missing, so I cannot include it. Instead of the AC adapter, I will include a "Nycaco 6-in-1 Docking Station." It supports 100W power delivery. I haven't used an SD card, so I haven't confirmed its functionality. As shown in the photos, it's the original 64GB model, which has been upgraded to a 1TB SSD. ☆Comes with a carrying case. - I also plan to include a Bluetooth controller for PC use that can be connected to the docking station via wired connection (If you don't need it, please let me know via message). There is an uncertain risk of malfunction. Please feel free to send me a message for price negotiations, etc. Thank you very much.