We've used these since our 10 month old was a newborn (we borrowed from a friend first, and have recently bought our own and replaced our friend's one after our puppy ruined theirs!). Our baby has been able to be in church with us during worship time without having to hear the loud music. She has recently decided she wants to pull them off, so that has been a battle. I would definitely recommend them. The only thing that stopped me from giving it 5 stars is the velcro section isn't long enough, ...