The Ring wired doorbell Pro supports birds'-eye view, package detection, and integration with Alexa, and is only $129 during Amazon Prime Day.
Interesting Engineering on MSN
One ring to rule your screen: ‘picoRing’ wireless mouse lasts 30 days per charge
University of Tokyo researchers unveil picoRing, an ultralow-power ring mouse that controls AR glasses for over a month on one charge.
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