Accessbility: Record lost location, Rename Item, Customize item icon. Keep tracking and find your items alongside friends and devices in the Find My app. Simple one-tap setup instantly connects Air-Tag with your Phone or Pad. Play a sound on the built-in speaker to help find your things, or voice control. Precision Finding with Ultra Wideband technology leads you right to your nearby Air-Tag. Battery: Built-in battery Battery model: CR2032 button battery Additional features: waterproof Name:Anti-lost GPS Tracker Type:HOME USE Compatibility:ios Function: Find items further away with the help of hundreds of millions in the Find My network. Put Air-Tag into Lost Mode to be automatically notified when it's detected in the Find My network. All communication with the Find My network is anonymous and encrypted for privacy, Location data and history are never stored on Air-Tag. Replaceable battery lasts over a year. Globally, as long as there are devices (for iPhone, for iPad and for MAC) around this device, you can track items through the Findmy network, and you will see the location of items in the "Find" app. Pairing requires an for iPhone or for iPad. The iTag needs to be located by the Find My app on your for iPhone/for iPad/for iPod touch/for Mac. The latest version of iOS, for iPad OS, or for macOS is recommended. Quantity:B:4 Pcs Colour:Black Material:ABS Package Contents: 4 * GPS Tracker Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.