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https://www.audflyspeaker.com/products/audfly-audio-spotlight-directional-speaker/

Audfly L is a wide range and powerful directional sound loudspeaker designed for use in billboards and digital signage in shopping malls and more. It is usually wall mounted and can reach great distances.
Audfly Audio Spotlight Directional Speaker

ModelFSC2-L1-H
Maximum Sound Pressure Level (Volume)88dB@2m/1KHz
Directivity Angle<15°(-20dB)
Frequency Range500Hz-13kHz
Rated Power58W
Input Sensitivity1 Vrms
Max Input2.8Vpp
Input Interface3.5mm AUX/RCA
Power Requirements24V DC/3A
Dimension926*118*36mm
Weight2.45 kg
Installed Accessories75*75mm Universal Bracket
Surface Treatment/ColorBlack
Matching Power Amplifier Size183*167*45cm
Status IndicatorPower Signal
Power Adapter(Input) 110-220Vac 50/60Hz  (Output) 24V DC/3A

Functions of Audfly audio spotlight speakers
Flexible Install Type: Ceiling mounted and Wall mounted or based on clients' demand.

Applicable to Multiple Scenarios: Almost all the scenarios you need for audio directive transmission usage, such as exhibition, museum or supermarket, etc.

Super Directional Transmission: Create focused audio zones in certain area without increasing the overall ambient noise level.
The Technical Principle of Ultrasonic Directional Sound Transmission
High-directivity audible sound is generated by the nonlinear interaction of ultrasonic waves in the air, that is, the sound signal is controlled to propagate in a high-direction manner within a specified range & angle.

For sound waves to have directivity, the conditions need to be met: the wavelength of the sound waves is close to or even much smaller than the size of the sound source. Therefore, the sound waves emitted by the ultrasonic transducer have directivity.

We provide parametric speaker for sale, Long range directional speaker, parametric speaker, etc. For more information, please feel free to contact us!