Since the learning period was short, I think the e-pencil is in relatively good condition. The warranty period has expired, but it was used for about 6 months. I have confirmed that it works by touching the audio marks in the textbook. As shown in photo 11, one side of the bag is clean. As shown in photos 12 and 13, the other side has stains where I marked. It is compatible with the current textbooks, so you can use it immediately if you put in batteries. I have confirmed that it works. I will sell it with the batteries removed, so there are no batteries. This was used by a child, and I hope someone else can use it. Please read my profile before purchasing.