This limit is set by Apple according to relevant research and guidelines to ensure that users can enjoy moderate volume when using devices. Excessive volume may have a negative impact on hearing, especially when exposed to high volume for a long time. Therefore, Apple tablet devices protect users' hearing health by limiting the maximum volume.
In the answer, you can expand some knowledge about hearing health, for example, remind users to control the volume properly when using headphones or high-volume equipment and conduct regular hearing tests. In addition, we can also provide some common hearing protection methods, such as choosing the appropriate volume when using earplugs or headphones to avoid prolonged exposure to noise. This can provide users with more comprehensive information and suggestions.