Re: If you have a child that has a sound sensitivity...
If you need something less noticeable and easily found by the 4th you can find ear plugs in a little case at Walgreens. Avery has noise sensitivity(never been to fire works) and he chooses to wear plugs when I vaccum. I love the headphones in the pp but he has a big old man sized head and I can never find any that inexpensive in adult size.
Just in case.