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Ultrasonic Directional Speaker with Focused Audio Technology Speaker for Museum | eBay
These directional speakers throw sound in focused beams like a spotlight - Yanko Design
LA1525SD Ultra Directional Speaker System
Buy Directional Speaker Model B - Focusonics®
A' Speaker : The speaker that only YOU can hear | Indiegogo
What are directional speakers? How directional sounds can be useful to focus sound waves only to a particular listener | Speaker, Sound waves, Technology
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Omni-directional single-person speaker on Kickstarter
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HyperSound HSS 3000 Directional Sound Speakers – Videotel Digital
Acouspade Classic™ - Ultrasonic Audio TechnologiesUltrasonic Audio Technologies
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Akoustic Arts by Stradio Directional Speakers | For Retail, Museums, Events and More
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These directional speakers throw sound in focused beams like a spotlight - Yanko Design
Directional speakers deliver UN museum message of peace
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KAS2230DLC Splash Waterproof Bi-Directional Sound Projector Speaker 70V
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Brown Innovations Directional Audio - Museum Directional Speakers
Brown Innovations Directional Audio - Sound Dome Directional Speakers
Ultrasonic Directional Speaker with Focused Audio Technology Parametric Array Speaker for museum - AliExpress
Bluetooth Mini Portable Directional Speaker for sale, Directional Speaker Company - Audfly
