hi all, here I will tell you about the technology loudspeakers called "Audio Spotlight System" made by Holosonic. Maybe anyone of you already know.This technology can make a person who becomes the target confused. for example when you are shopping in supermarket and suddenly you hear a sound that does not know where it comes from. you will be surprised and ask yourself " is this ghost sound ?" Haha so creepy. This technology uses ultrasonic waves; an actual high-frequency waves can not be captured by the human ear, but is distorted by the air on the distance between the speaker and the human ear slowly and then subtly will sound. very impressive for media advertising. the media of ultrasonic wave is a laser beam that is straight and wide. hi all, here I will tell you about the technology loudspeakers called "Audio Spotlight System" made by Holosonic. Maybe anyone of you already know. This technology can make a person who becomes the target confused. for example when you are shopping in a mini, and suddenly you hear a sound that does not know where it comes from. you will be surprised and ask yourself "is the sound a ghost?" . This technology uses ultrasonic waves; an actual high-frequency waves can not be captured by the human ear, but is distorted by the air on the distance between the speaker and the human ear slowly subtly will sound. very impressive for media advertising. ultrasoniknya media wave is a laser beam that is straight and wide. so only the targets that could be heard. technology aims to help a store to be able to increase profits. but it is so funny, if you try it to your friends. I found this technology on youtube yesterday. So nice. I like techno world so much. 

So watch this video (: