0-7 days baby’s vision development
Babies have a hearing ability. Most babies can react to hearing stimuli 1-2 times after they are born, and they are also very sensitive to the voice of adults. The adult speaks softly next to the baby and observes whether the baby responds differently to changes in voice.
8-30 days baby’s vision development status
Hearing is fully developed, he will pay close attention to human voices and be sensitive to noise. Talk next to your baby, turning his head to familiar sounds and languages.
