How Can Chromecast Connect To Your Friend’s Phones Without Using WiFi? Ultrasonic Sounds
During yesterday’s I/O keynote, Google announced a rather fantastic new feature coming to the Chromecast: soon, your friends won’t need to be connected to your WiFi to be able to send things to your TV. While Google’s Rishi Chandra mentioned yesterday that the new WiFi-less pairing system used a “variety of technologies” to determine when you’re near a Chromecast unit, he didn’t really breakdown what those technologies might be.
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