The sense of hearing is an inner sense of perception of space. people with high stress, learning disabiliteis, autism and ADHD often have to make an enormous effort to differentiate sounds, and are more sensitive than other people to noises. The acoustic properties of materials and constructive elements and systems must be taken into account. The ability to adjust the levels of acoustical is a significant issue and allowing to focus longer and receive a sense of calm

Adjust the sound pressure level according to the level to the user and activity type.

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