Making and Testing a Homemade Parabolic Mic - YouTube
Long distance listening - this is a true parabolic microphone tried and tested. I can hear a light whisper at 50 yards animals scratching at 70 yards. : r/3Dprinting
How to build a parabolic microphone dish - Videomaker
Eavesdrop from a Distance with This DIY Parabolic "Spy" Microphone « Hacks, Mods & Circuitry :: Gadget Hacks
WOVTE Parabolic Dish Directional Microphone, for Long Range Listening Device up to 300 FT, Monocular X8 Times Long Distance Hearing, Birds Listening Telescope, Camping Tools - Walmart.com
5 Best Parabolic Listening Device In 2023
Ultrasonic Receiver with Directional Microphone and Parabolic Dish - Information Unlimited
Products - Rolling Hills Asylum
Amazon.com : HSTD Parabolic Microphone Monocular, Sound Amplifier Spy Ear Bionic Listening Device, Long Range Listening Device up to 300 FT 8X Magnification for Birds Listening B : Electronics
Roll Your Own Parabolic Microphone | Hackaday
How to Build a Long Range Laser Spy System for Eavesdropping on Your Neighbors « Mad Science :: WonderHowTo