Ultrasonic wavelength is only a few millimeters, much smaller than the speaker, thus can produce nearly linear narrow beam. Ultrasonic wave directional loudspeaker can be like a flashlight beam directional spread in the air, can control the sound waves in a particular area, sound is very big, in the specified area out of the area, there would be little voice, not even
Advantages ofUltrasonic Directional Speaker
A. Strong directivity, achieve the best point to control the voice and maximum reduce noise pollution.
B. Easy installation, can be installed at any Angle