Tile is an American consumer electronics company which produces tracking devices that users attach to their belongings such as keys and backpacks. A companion mobile app for Android and iOS allows users to track the devices and locate lost items through Bluetooth 4.0, or view their last detected location. In September 2018 GoPro vet CJ Prober became CEO of Tile. In September 2015, Tile launched Generation 2 hardware that includes find-your-phone functionality and other feature upgrades, which by January 2016 sold over 4.5 million units. In August 2017, two new versions of the Tile were launched, the Tile Sport and Tile Style. As of 2019, the lineup consists of the Pro, Mate, Slim, and Sticker.