This is a 6.5th generation 160GB (PC293J) iPod that has been upgraded to 256GB using an iFlash Dual x SD card (128GBx2). Basic functionality has been confirmed. The battery is new. There is an engraving on the backplate. Options: Upgrade to 384GB (256+128) - +3000 yen Upgrade to 512GB (256+256) - +6000 yen