There was a time when tech news was full of talk about long-range wireless charging using a technique known as RF power harvesting – using radio waves to charge devices around the home, without the need for charging pads.
While companies like Energous and Powercast made big promises for the tech, what’s currently possible in the real world is far more modest. But Samsung has demonstrated that trickle-charging a TV remote by Wi-Fi is possible today, and the very compact nature of the tech means that it could similarly be used to keep AirTags charged …
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