The holistic concept of the Busch-Welcome door communication system offers convincing solutions for numerous application areas and specifications. A special design feature is the audio module. Its backward-tilting surface symbolises a door that is slightly ajar which lets out light to warmly welcome the visitor. The area for the name plates exudes a certain quietness. The Busch-Welcome audio outdoor station is available as surface-mounted or flush-mounted version in two different designs of genuine material: brushed stainless steel or white-coated metal.