Want to know how to tell if your baby’s hearing is normal? Do the test for your baby! 【Under-moon baby】 1. When hearing sudden loud sounds, physiological reflexes such as jumping, closing eyelids tightly, holding arms flexed in front of chest, shaking limbs and awakening will occur. After hearing a sound in the awakened state, they will turn their eyes and head to find the source of the sound. 2.They will stop crying when they hear a friendly or familiar voice. When hearing the mother’s voice, there will be an expression response. 1-3 months old baby】 1.When lying still with eyes open, will close eyelids if hearing a sudden sound. 2.When crying or moving their arms and legs, they will stop crying or stop moving when they hear a sudden sound. 3.When he makes a sound near him (such as ringing a bell), sometimes he will slowly turn his face. 4.Whenever he hears soft and pleasant music, he will smile and listen quietly. 5.When suddenly hearing screaming or harsh music (such as rock music, blowing music, etc.) during sleep, he will show his whole body writhing, shaking his hands and feet and other irritable appearance. 6.When adults tease with words or when the surrounding environment appears noisy, sneezing, alarm clock, etc., they can respond with “oh”, “ah”, “ooh” and other sounds or laugh. (4-5 months old baby] The baby has the ability to orient the sound he hears (ring the bell about 15 cm behind the baby’s ear, if the baby hears it, he will turn his head to the direction of the sound source). 【6-7 months old baby】 1.Has perceived the habitual speech sounds and can actively look for the sound source. 2.When his name is called, he will turn to the caller to show his answer. 3.When talking or singing to him, he can quietly look at you, watching your mouth shape, and also make a sound to “answer”. 4.When the TV or radio is on, he can turn toward the sound source sensitively. 8-9 months old baby】 1.Under the guidance of adults, he can understand simple language and use actions to express the meaning of words and phrases, such as clapping hands to say “welcome” and waving hands to say “goodbye”. 2.Expresses concern for various external sounds (e.g., car, thunder, dog barking) (suddenly turns head to look). 3.Imitate the sound of animals and laugh. 4.When he is in a good mood, he will take the initiative to make sounds and imitate the sounds taught to him by his parents. 5.When hearing “no”, “feed” and other reprimanding sounds, will retract the outstretched hand or cry. 10-12 Months old baby】 1.When hearing a sound in the next room, he can tilt his head in surprise and listen. 2.Able to point out their five senses, such as eyes, ears, mouth, etc., when hearing instructions from adults. 3.Can wave their hands to music. Can look for sounds outside of their field of vision. 4.Able to imitate adult’s pronunciation, such as “mommy”, “daddy”, “baby”, etc. 5.When approaching him covertly and calling his name softly, the baby will turn his head to look for the source of the sound. 7.When hearing “give me xxxx”, he can bring something to me; when hearing “where is xxxx”, he can look for something with his eyes.