Feature●▶【All-Earth Positioning & Accurate Search】The anti-lost tag uses GPS positioning technology to accurately locate items from the Apple Fand network to locate the items globally from the Apple Fand network, and you dont need to download other apps●(Compatible with IOS only) Compatible with all I-OS devices. We recommend using the latest version of i-OS, padOS, or MacOS. Note: Please note that it is not compatible with Android smartphones●Reminder & Lost Mode: When items are restrainted on the loss prevention device are left behind, the phone will display an app message. Anything you lose can find with other Apple devices through the Find network●Built-in Coin Battery & Easy Battery Replacement: It has a built-in universal CR2032 button battery that can be used for over 100 days, and can be easily replaced by turning the back cover counterclockwise●▶【MULTI OCCASIONS】Perfect for those who are forgotten can be attached to keys, wallets, luggage and other items that are easy to lost, making it easy for children and the elderlyDescription