Audfly R1 Ceiling Mounted Directional Speakers

https://www.audflyspeaker.com/products/audfly-r1-ceiling-mounted-directional-speakers/

The Audfly Model R1 is a slim, small, and beautiful ultrasonic speaker designed to blend neatly with ceilings or walls. It is used to confine sound to a small area in a museum (information point) or a supermarket (advertising point).