High-decibel toys are a disaster for children's health. With the emergence of a large number of novel toys, toys with loud noises are becoming more and more harmful to infants and young children's hearing. A Swedish scientific research institution said in a report that although it is not yet possible to accurately measure the sensitivity of babies and young children to sounds, there is evidence that children are more sensitive to sounds than adults. If children's toys make a loud noise, it may have catastrophic consequences for the baby. Some children play with toys such as submachine guns, cannons, tanks, etc., within 10 cm, the noise will reach 80 decibels or more. The noise level is measured in decibels. Our daily ordinary conversation is 30 to 40 decibels, loud talking is over 80 decibels, and loud noise or tweeters are 90 decibels. Sounds below 40 decibels have no adverse effects on children; noises over 70 decibels can cause damage to children’s auditory system; when it reaches 80 decibels, children will feel noisy and uncomfortable; if the noise often reaches 80 decibels, children will have headaches, Dizziness, tinnitus, emotional tension, memory loss and other symptoms. The healthy growth of infants and young children requires a quiet and comfortable environment. If they are stimulated by noise for a long time, they will become prone to agitation, lack of tolerance, lack of sleep, and lack of concentration. Some experts have tested the noise level of 7 types of children's toys in my country (manned electric toy cars, spring-sounding toys, inertial toys, etc.). The figures have to be surprising: the noise emitted by toy vehicles is 10 cm away. Within 82 decibels to 100 decibels. The noise value of a large music gun at a distance of 100 cm is 74 decibels to 107 decibels, and the maximum can reach 130 decibels to 140 decibels. An air-compressed toy that squeaks after being squeezed can have a volume of 78 to 108 decibels within a distance of 10 cm. The average noise value of firecrackers within 3 meters is 125 decibels to 156 decibels. Among them, the manned electric toy car has the highest sound level, reaching 74 decibels to 97 decibels. This kind of toy cars mostly appear in children's playgrounds in parks or large shopping malls. Inertial children's toys have the lowest sound level, ranging from 52 decibels to 81 decibels. But the sound level of most children's toys exceeds 60 decibels.