Square dance Small Apple song baby listening to the side, if the sound is too loud then the ear will be affected.
Square dance sound due to the sound of a large number of children is influential, especially the ear, so adults must pay attention to this issue. Children's sensitivity to sound perception is higher than that of adults, and noise that exceeds 70 decibels can damage a child's hearing system, and when the noise reaches 80 decibels, children can develop various problems including hearing impairment.
Basic introduction
When choosing toys for children, it is important to pay attention to the physical and mental development and health of infants and young children, and the sound emitted by toys should be controlled at less than 70 decibels. First of all, it is necessary to purchase regular toys. For example, toys should be able to pass the safety and conformity monitoring. Toys from the wholesale market are not safe and secure, do not consider; secondly, to screen toys.
Before the child gets the toy, parents should listen to it by placing it about 30 centimeters away from their head. If you are all startled, then its volume is definitely over the limit; control the volume of the toy when you use it. If it's too loud, we recommend gluing its speakers with adhesive strips to reduce the volume, or simply taking out the batteries. Minimize the time of use when your child is playing video games or listening to stereo equipment.