If you are worried that you or your children listen to music at a very loud sound, then you can use this kind of children's headphones, which are actually specifically designed for children. Even if the headphone is at its maximum volume, it will not damage hearing. In this way, children can also use such headphones to listen to music with peace of mind. However, since it is specifically designed for children, the corresponding size and other parameters should be customized according to the needs of children, instead of using the headphones for adults that we usually buy. The price of this children's headphones is 30 US dollars abroad.