Compared with conventional loudspeakers, the main difference between Audfly directional audio speaker and conventional loudspeakers is that Audfly directional audio speakers apply many ultrasonic array transducers as sound generating units, combined with a series of algorithms Audfly developed, through the medium's nonlinear interaction, the directional propagation of sound at a specific angle is finally realized.

The advantages of ultrasonic speaker array is its higher-frequency waves with a relatively shorter wave length and spread out less as they travel. Meanwhile, having an array of many, small transducers makes sound disperse less than it would do from a single, large transducer, ensures balanced sound quality of directional speakers audio transmission. That is what we called Audfly Directional Sound Technology.