Ring
View 技術ニュース blogRing's New Smart Lock Lets You Hand-Crank Your Way Back Inside
Amazon's smart home brand Ring has unveiled its first smart door lock — and it comes with a clever failsafe: a hand-crank emergency power knob. If the built-in battery ever dies while you're locked out, a few twists of the knob generate enough power to unlock the door. No spare key, no locksmith, no drama. Four Ways In The Ring...