Focusonics® - Directional speakers delivering a beam of sound
DSPPA Ultra Directional Speaker - Guangzhou DSPPA Audio Co., Ltd.
Brown Innovations Directional Audio - Sound Dome Directional Speakers
Pack Hypersound - Waves system
Brown Innovations Directional Audio - Directional Sound Stays In Bounds At Adidas Flagship
Advance Replacement - VIDBeam Directional Sound Speaker – Videotel Digital
HyperSound Glass – The World's First Transparent Directional Speakers - YouTube
Directional loudspeakers - How they work - Explain that Stuff
These directional speakers throw sound in focused beams like a spotlight - Yanko Design
What are directional speakers? How directional sounds can be useful?
Directional sound - Wikipedia
Directional Speaker - Acouspade™ - Ultrasonic Audio Technologies
Directional Speakers - Ultrasonic Audio Technologies
What are directional speakers? How directional sounds can be useful?
Directional speaker delivers personal sound, sans-headphones
Infrared Sensor Directional Sound Dome Speaker for Control Audio - China Sound Dome and Dome Speaker price
Directional Speakers for Museums - Focusonics®
Panphonics - Ultrathin Directional Loudspeakers
Social Distancing Speakers | Audio Spotlight by Holosonics
Conceptual drawing of a directional parabolic speaker. | Download Scientific Diagram
Do parametric speakers exist for home theater and are they good enough to centralize sound so it can't be heard in the next room? - Quora
X-Series Directional Speakers | Holosonics
A' Speaker : The speaker that only YOU can hear | Indiegogo
Focusonics® - Directional speakers delivering a beam of sound
Analogue Directional Speakers: How to Make and Test Different Types of Parabolic Reflectors? (TfCD) : 10 Steps - Instructables
Omni-directional single-person speaker on Kickstarter
