This is a used 6th generation 80GB (MB029J) model, with basic functionality confirmed. The battery has been replaced with a new one. The 80GB HDD has passed a SMART diagnostic test and is in good condition. Regarding the specifications of this model, it cannot be charged with a third-party high-output adapter. Therefore, a charging adapter that works with this device is included. (Charging via connection to a PC is not a problem)