• Nougat@fedia.io
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      3 days ago

      tl;dr: There are little “chimes” of different lengths that produce sound when struck. The sound is higher than what humans can hear. The four buttons on the remote lift strikers and then drop them against the chimes. It’s basically a toy piano.

      We had one when I was a kid, hand-me-down from grandma. We also had a dog who wore a fairly loose stainless steel choker chain. When he’d bounce around, the chain links would clink, occasionally turning the TV on/off, changing the channel, muting the volume.

      • spicy pancake@lemmy.zip
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        3 days ago

        I had a cheap programmable multicolor LED lightbulb that used this technology but worse, as it used audible chirping produced by an app. The beeps were earsplittingly high pitched and had to be played LOUDLY to work.

        Occasionally the bulb sensor would hear god knows what noise from outside (nothing in that neighborhood sounded even remotely like the app’s digital harpy screeches) and SUDDENLY ACTIVATE ITS PARTY STROBE LIGHT MODE.

        I let my roommate keep it when I moved out.