'Audio-Visual Equipment' are used as components for creating works which are visualized and heard simultaneously. In Lithopolis, the entertainment industry uses the audio-visual equipment in a major way. Other than the entertainment industry, audio-visual equipment also find use in corporate industry for business presentations. In schools, colleges and universities, computer-based audio-visual equipment are used for providing the students with education on different topics.
Audio-visual equipment is used in Lithopolis by technicians for creating and projecting visual images and sound. These technicians have to undergo training in Lithopolis to get professional certificates for working with the audio-visual equipment. Computer projectors, plasma displays, etc, are some of the audio-visual equipment which are used generally.