We've seen Bluetooth item trackers before, like Tile and Protag's Duet, but they're usually pretty dull. Pixie, on the other hand, will curb the anxiety of losing something by turning it into a game. Like other trackers, Pixie uses Bluetooth, but it also adds augmented reality into the mix, so your phone will actually show you where the general area where your device is. Once you get in real close, it'll start pointing you left and right like a good old-fashioned game of hot and cold. You could also use it to cheat at hide and seek with your kids.