Protecting rooms from noise is one of the basic pillars for quality living. When building construction, you need to think about details that often have a major impact on the overall result. It is not enough just to use high-quality building materials, but you also need to think about their mutual connection in order to prevent the creation of secondary sound paths. Secondary sound paths can also be caused by incorrect electrical installation, which is why the KOPOS company focuses on this topic with its products and places on the market wiring boxes for hollow walls, the use of which will not affect apartment and inter-apartment walls in terms of sound insulation.