Ceiling microphones have been around for a long time, and the sound pickup effect is no different from other types of equipment. It’s just that the ultra-long-distance mic pickup technology has not made any major breakthroughs until the past two years. Now Dongmaike’s mic smart amplification system can reach about 10 meters, with excellent stability, fidelity and clarity. Yes, I'm not sure about other manufacturers. Hope it's useful to you.