Left-Behind Reminder: If your tracker tag disconnects from your Apple device's Bluetooth,you will receive instant notifications.When you accidentally leave your bag at the gym,the "Left-Behind Reminder" will promptly alert you to retrieve your items. Works with Apple Find My(IOS ONLY): Simply use the Apple Find My app and add the key finders to the Items tab.You can locate it anywhere in the world using Apple’s network of millions of devices.Android device is not supported.The item tracker tag comes with a CR2032 battery that provides up to 1 year of standby use. Find Far Away: When you are out of Bluetooth range, use the Find My app to view the latest location of the item locator on the map, allowing you to quickly find the location of your lost items.