GoKawiilRing unveils its first smart lock with hand-crank backup power
Ring has announced its debut smart lock, which includes a built-in supercapacitor that users can recharge manually via a small crank. A few turns of the crank provide about 20 seconds of power, enough to unlock the door if the battery has died or been removed entirely. Ring CEO Jamie Siminoff demonstrated the device, which also features a backlit touchscreen keypad.