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Re:Open source laser microphone picks up laptop keystrokes by BobaFloutist on Tuesday August 13, 2024 @12:39PM (#41237035)
> Is the amount of power needed for the laser lower than the amount of power a USB-keyboard, or a Bluetooth connected keyboard needs?

I think the point is that the keyboard itself needs 0 power, so it doesn't ever need to be tethered, recharged, have batteries replaced, etc.

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