New child babies can listen to fairly nicely, but not correctly. The center ear is full of fluid and this impairs hearing to an extent. I despise to sound stupid but I really don't know. I have 20/20 eyesight, my husband or wife doesn't. For moms with a toddler https://felixcbytn.blogripley.com/40278234/5-simple-techniques-for-baby-diapers-pallets-for-sale