Note: Continuous playback time was tested after playback, with the hold switch locked and the LCD in sleep mode, and no further operation. 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, track changes, volume adjustments, etc., consume power on the LCD each time, so playback time will be considerably shorter. In that case, setting the LCD brightness to minimum seems to extend the playback time. Note: All items are initialized in iTunes, songs are loaded, and operation is confirmed. Only those in normal working condition are finally initialized and shipped. Used, working product. This listing is for the main unit only. Battery replaced with a new one (2025/11/22) LCD not replaced. Displays normally. The exterior has many scratches. Please examine the photos carefully before purchasing. We also request that those who understand used products purchase this item. 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 working normally. Continuous playback time confirmed up to 36 hours. Test conditions: Fully charged (plug icon displayed on the battery mark) Volume at the center position Earphones used were the ones that came with the iPod (90cm long) After playback, the hold switch was locked and left unattended Playback was checked occasionally until the estimated end time. Testing is performed to check the battery condition and the quality of the repair work. This is not to guarantee the time, so please understand. Please contact us within 2 days of arrival for initial defects. We will address 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.