This item is a joke. Its very low quality and doesn't even work properly. There is a reason why Apple charge the prices they do for the quality they sell. It was used for under 5 minutes and put in the bin.
The author starts with a false myth that boys are different from girls, then proceeds to provide tips on how to re-enforce that assumption. I can not see who this would be useful for. Read "Delusions of Gender" by Cordelia Fine, for a true understanding of raising children, and providing them with the best opportunities in life.