Finally, Sunglasses That Ping Your Phone When You Leave Them Behind The niftiest part of all, though, is that once you pair the #sunglasses, that's about all you'll ever have to do. A tiny #solar_cell on the sunglasses's #Bluetooth chip keeps the transponder constantly juiced, and if it needs a recharging a message will pop up on your phone telling you to put your sunglasses in the sun for an hour or so. &Rob 2014-05-02 01:47:14 |