It seems to work ok. It does magnify your voice so the kids are having a blast with it. The drawback is that it takes 6 AAA batteries which can be a little costly. But, on the other hand, what kind of toy can you get for this price that keeps kids busy for a long time. I walked up behind my husband trying to sneak a candy bar while he thought no one was looking. I yelled "hey!" and he nearly jumped out of his skin. It that's not worth 18.00 bucks, I don't know what is! LMAO