Purchased used. A collector's item stored at home. Initialized. Upon checking, the capacity was customized to 128GB. I don't know the specifics, but I believe it has likely been upgraded to an SSD. Battery life is unknown, but it doesn't seem to drain for several days even when charged and left unused. The black wheel is rare, I think. There are some cracks on the corners and edges, but it's relatively clean. Only initialized, other operations have not been confirmed. Even when sliding the hold switch, it can still be operated, so the hold switch doesn't seem to be functioning. Please note that the operation is not guaranteed as it is an old vintage item. The iPod is now recognized again on the latest macOS 26, but I haven't tried putting music on it. I think it's also possible to format it on Windows with iTunes and use it. The intuitive operability is still unique, and it's understandable why many enthusiasts continue to use it. The 5th generation has a high-performance music chip and is said to have the best sound quality of all time, making it a good-sounding model. Apple Model Name: iPod classic