Lockin's everlasting vein-recognizing smart lock doorbell cam combo is peak CES

Smart locks have a notable inconvenience: running out of power. Lockin, maker of vein-recognition locks, debuted its newest model on the CES floor. It charges wirelessly via an optical infrared beam with a four-meter range. A small device, connected to a standard outlet inside the house, shoots a beam at the lock, which has a small receptor panel that turns the light into power, sort of like a plug-in sun beaming at a tiny solar array. The tech carries certifications from two independent organizations, and won’t harm eyeballs or bodies that get in the way of the beam (though if the beam is interrupted, charging stops). The lock itself is a mortise lock that will likely require a pro to install, as it’s not just a standard deadbolt replacer. It’s not a standard lock in other ways to [...]