Merong hearing aid for babies. Based on this article, kapag 6 month old na si baby, pwede na syang mag-hearing aid. But of course, when choosing for the right hearing aid for our baby, we should consider its appearance (kung fit ba sa baby natin) and function. You can read more about hearing aid for babies here: http://www.hearingspeech.org/main/care-treatment/solutions/hearing-aids-for-infants/