1、Work with Find My: The BT tracker only for Apple system smart phone(not for Android) to keep track of and find your items and devices in the Find My app worldwide. Free yourself from the burden of find item 2、Precise Positioning and Sound Reminder: The item finder with precise positioning, nearby sound reminder, and far away location by Apple phone. Perfect for Keys, wallet luggage, pet, bags ,camera and more. 3、Privacy Protection: All communication with the Find My network is anonymous and encrypted for privacy, location data and history are never stored on the tracker to protect your privacy. 4、Battery Operated and Long Standby: Item finder designed with battery operated(include). Each replaceable battery lasts 6-12 months to use. Lightweight, compact and portable. 5、Durable Material: Multifunctional tracker made of upgrade ABS. Scratch-resistant, wear-resistant and not easy to damage. Note: not waterproof. easy to install and remove.