Bose MSA12X. The Bose Professional MSA12X active beam steering array loudspeaker has been specially developed to provide excellent speech intelligibility and musicality even in acoustically demanding rooms. Twelve processed and amplified transducers create a precise vertical sound beam that covers the entire audience while reducing distracting echoes that compromise clarity. The result: an even sound from front to back without mechanical alignment or angle brackets.

Product details : https://www.boseprofessional.com/en-us/products/loudspeakers/ceiling-mount/edgemax/edgemax-em180-loudspeaker