Supplementary to Audible Alarms: VADs are especially powerful in significant-sounds areas or in which hearing defense is worn, supplementing regular audible alarms. Initiatives slide into the following types: movie; pictures; art; inside design and style and architectural studies; textile and clothing management; strategic communications and graphic style and design; theatre; https://www.firesense.co.uk/type/addressable-fire-system/addressable-sounders-vids-vads/