Tg-40sp Ultrasonic Directional Speaker

Advantages of the ultrasonic directional speaker: 1. strong directionality: achieves the best voice control point and maximum reduction in noise pollution. 2. easy installation: can be installed at any angle. ultrasonic waves are only a few millimeters in length. they are much smaller than traditional speakers and can produce a narrow, nearly linear beam of sound. ultrasonic wave directional loudspeakers can travel through the air like a flashlight beam, controlling the sound in a particular area.