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Chromecast has been using ultrasonic pairing for "guest mode" for some time. Haven't seen any major backlash from it yet. I'm assuming it's very briefly used to
by mNovak 6y ago
Chromecast has been using ultrasonic pairing for "guest mode" for some time. Haven't seen any major backlash from it yet. I'm assuming it's very briefly used to exchange some configurations, not continuously transmitting data.
- odomojuli 6y agoRight, the decision to use ultrasonic pairing is actually cogent since it doesn't involve hopping onto Wi-Fi or competing with Bluetooth devices.