Are you tired of dealing with angry neighbors who aren’t happy with the volume of your music? The new ultrasonic Klang speaker can help. It’s just a concept right now, but these speakers are designed to send a narrow beam of sound directly to the listener, while being inaudible to others.
The speakers send out sound in an ultrasonic frequency around 30,000 Hz. The sound travels straight ahead and creates music inside your ears if you are in it’s path. They can be adjusted in different directions to make the sound feel like its coming from somewhere else too.