What are the uses of modular invisible speakers?

Modular stealth speakers are used for the following purposes:

Family surround sound system: indoor audio equipment used in living room, bedroom, study room, dining room and other family spaces.

Background music system: audio equipment that provides background music services, such as hotels, restaurants, shopping malls and other commercial spaces.

Outdoor surround sound system: audio equipment used in outdoor entertainment places such as parks, playgrounds and amphitheaters.

Industrial and conference system: audio equipment used in factories, conference rooms, lecture halls and other spaces.

Active speaker system: audio equipment used in stage performances, concerts, weddings and other occasions.