Sound beam / Sound beam

Everyone likes music. But the musical taste is different according to the individuals. By using a smartphone, we make the liked music list. So, the personal musical taste becomes stronger more. In this social change, it is pleasant to play the music but the music can become the noise to the other people. It is due to be different from my musical taste. The superdirectivity speaker solves this problem. I can listen together usually to the music. And if I change the speaker to the sound beam mode, a speaker finds my location. And speaker sends a sound to me. The sound doesn’t give the other people. It is sound beam that Sound for me