Supplementary to Audible Alarms: VADs are notably productive in significant-sounds regions or in which hearing safety is worn, supplementing common audible alarms. Initiatives drop into the following categories: video; images; artwork; interior style and architectural research; textile and clothing administration; strategic communications and graphic structure; theatre; and an open up https://www.firesense.co.uk/type/addressable-fire-system/addressable-sounders-vids-vads/