Feature: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, friends and devices in the Find My app worldwide.2. Support Message Push and Sound Alarm: The item finder with one button operation and remote control by Apple phone. Perfect for Keys, wallet luggage, pet, bags 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 6-8 months to use. 5. Durable Material: Multifunctional tracker made of upgrade ABS. Scratch-resistant, wear-resistant and not easy to damage. Note: not waterproof.Specification:Specifications:Color: BlackMain Material: ABSBattery operated: 1*3V CR2032(include)BT version: BT5.2Standby time: 6-8 monthsSize(with chain): 100*33.4*11.2mm/2.2*3.4*0.7inWeight: 14g/0.5oz(1pc)Package List:Package List:4 * Item Finder1 * Manual