These speakers feature designs clearly sought. The effect of the two colors black and gold gives it a sleek and stylish with discs that provide a more sophisticated creation. But Klang is not simply a matter of appearance, these speakers can guide the sound in one direction, timely and accurate. For this it uses the low spectrum of ultrasound. Antennas focus and direct the sound in the desired direction and only in that direction. Klang broadcast stereo sound quality, said to be most satisfactory with a frequency of 30,000 Hz. These speakers are currently ultrasonic prototypes.