Built for the ultimate in tracking capabilities, these four Tile Pro item trackers help you keep up with your important belongings. They offer a 400-foot Bluetooth range and connect with the companion app on your smart phone so you can locate your misplaced items with ease. They are durably built for water-resistance and feature Tile's loudest ring yet. | Tile Pro (2021) Bluetooth Item Tracker - 4 Pack - Black/White