Hearing Milestones Ask your child's pediatrician for a referral to a pediatric audiologists if any of the following occur:Your Infant: Does not pass newborn hearing screening Does not babble or make sounds by the age of 9 months Your Child: Does not respond to sounds Does not understand simple commands by the age of 2 Does not imitate or produce words by the age of 18 to 24 months Cannot be understood by family and/or caregivers b