Note: Continuous playback time was tested after playback by locking the hold switch and putting the LCD to sleep, and then leaving it untouched. This was done to confirm the average performance of the purchased battery group, eliminating human operation. This is not based on actual usage. In reality, operations such as changing songs and adjusting the volume, etc., consume power on the LCD each time, so the playback time will be considerably shorter. In that case, it seems that the playback time will be longer if the LCD brightness is set to minimum. Note: All units are initialized in iTunes, after songs are loaded, operation is confirmed, and only normal units are finally initialized and shipped. This is a listing for a used, working unit only. Battery replaced with a new one (2025/12/22) Click wheel sw assy replaced with a new one LCD not replaced. Some age-related degradation. Displays normally. The exterior has some scratches. Please examine the photos carefully before purchasing. Also, we hope that those who understand used products will purchase. Charging, PC-related operations, music playback operations, click wheel, hold switch, FM, video camera, pedometer, voice memo, and sound from the built-in speaker have been checked and are normal. Continuous playback time confirmed up to 36 hours. Test conditions: Fully charged (plug icon appears on the battery mark) Volume at the center position Airphones used were the ones that came with the iPod (90cm long) After playback, the hold switch was locked and left untouched Playback was checked occasionally until the estimated end time Testing is done to check the battery condition and the quality of the repair work. Please understand that this is not to guarantee the time. Please contact us within 2 days of arrival for initial defects. We will respond to issues other than the exterior. Items that have been submerged in water or show signs of disassembly are not covered. Thank you for your understanding.