Soundlazer "Snap" - The Directional Parametric Speaker by Richard Haberkern — Kickstarter
Building the dream Omni-Directional LoudSpeaker - MiniDSP
How to Make Ultrasonic Directive Speaker Circuit | Homemade Circuit Projects
Analogue Directional Speakers: How to Make and Test Different Types of Parabolic Reflectors? (TfCD) : 10 Steps - Instructables
DIY Ultrasonic Audio Laser (Directional Speaker) - YouTube
SparrowlegsSpeakerDesign Omni-Directional Speakers. Available soon! | オーディオ, スピーカー, 音響機器
DIY Ultrasonic Audio Laser (Directional Speaker) - YouTube
Directional loudspeakers - How they work - Explain that Stuff
Building the Cyclops (aka Poke Ball) Omnidirectional Speaker - by SoundBlab - YouTube
DIRECTIONAL SPEAKERS - YouTube
Building the dream Omni-Directional LoudSpeaker - MiniDSP
Super Directional Speaker Kit Diy Maker Electronic Seeed Booole - Unknown - AliExpress
Analogue Directional Speakers: How to Make and Test Different Types of Parabolic Reflectors? (TfCD) : 10 Steps - Instructables
Soundlazer "Snap" - The Directional Parametric Speaker by Richard Haberkern — Kickstarter
Super directional speaker kit - SWITCH-SCIENCE
Bluetooth Mini Portable Directional Speaker for sale, Directional Speaker Company | Audfly
Super Directional Speaker Kit Diy Maker Electronic Seeed Booole - Unknown - AliExpress
Directional loudspeakers - How they work - Explain that Stuff
Sound in every direction - YouTube
Omni-directional-ish Speakers? | diyAudio
