Android: We've seen apps that allow you to share links with sounds before. Radon puts a new twist on it by using sound waves that the human ear can't hear. The app works by employing the little-used ultrasonic features in Google's Nearby API. Simply open the app and you can send or receive links without having to manually pair devices, copy down text or scan QR codes. It's probably not something you'll want to use every day, but it's handy if you need to send links to everyone in your meeting all at once.
Radon Sends Links Between Devices Using Ultrasonic Sounds
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