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LG smart TVs caught logging audio with screen off and snooping on local devices
(www.notebookcheck.net)
This is a most excellent place for technology news and articles.
I tested this when my LG fridge was new, and got a warning when I left the door open. Quite helpful. But still disabled.
The regular beeping speaker/piezo solves the same problem without WiFi or other shenanigans.
My LG fridge also beeps, as any other fridge would. I guess the added benefit is that it can send a notification to your phone, maybe useful in some scenarios, all it costs is your privacy..
It needs wifi for the open-door alarm? My dumb GE fridge can do that without smart features.