I have read a number of reviews on various sites, and most people reccomend not going with the knock-off brands. Why take a chance with your daughters hearing being impared when you could spend a bit more money and be more assured that the product will do the intended job? Or you could just go with earplugs. I use earplugs when i am looking to block out the guns noise and not worried about amplifying sounds in the woods. Plus, you are still able to hear someone talking to you with earplugs in.