When I was pregnant, I heard people say, "If you listen to prenatal music in your stomach, your baby will be smart and understand music theory;" Play music when crying at night, and the child will be quiet, as if returning to the familiar environment in his stomach. "I spent 150 yuan to buy a heart-shaped prenatal education instrument and listen to prenatal education 1 time every day. Later, when the baby was born, I played those music as soon as I cried, and it didn't work at all! And the child is now three and a half years old, singing out of tune. Prenatal education instrument is the gimmick of the business! My family is in favor of prenatal education during pregnancy. I used it, but I didn't spend less money on it! At first, I bought fetal heart sounds, not drums. I feel irritable after listening too much. The baby sometimes moves irregularly, which makes me flustered. Later, I changed the prenatal education instrument. Instead, let the baby in the belly listen to music through the prenatal education instrument. Can he hear clearly through amniotic fluid? I feel that every time I use this, my baby is protesting. Hundreds of thousands of dollars, probably to buy a heart-to-heart?