popular ! iPod Nano (3rd Generation) 4GB

This listing is for a 3rd generation iPod Nano with 4 gigabytes of internal memory. I don't use it anymore because it has a couple of flaws. First, it sometimes lies about how much charge it has left, meaning that sometimes it will show the battery practically full in the corner when in reality, there's only a little bit left. Secondly, it doesn't charge when plugged into the wall. It only charges through a computer.

As far as I'm aware, there is nothing else wrong with it besides it being deceptive about the battery and not charging through an outlet. The battery holds a charge perfectly fine and plays music with no problem. There are also 3 games already preloaded on it, and it's already in a case. However, it says PFAFF on the back for assorted reason. What does that mean??