Keep track of important items with the Cube Shadow Bluetooth Tracker. It features a thin design that easily attaches to wallets, passports, remote controls, laptops or anything else you do not want to lose. This tracker pairs with the Cube Tracker app to view your Cubes last known location on a map. It is designed to ring and has a 200-foot range so you will know if it is near or far from your current location. Cube Shadow Bluetooth Tracker also lets others with the app and within proximity of your tagged item to trigger an update on tag's latest location.