Apple AirTag is a small, lightweight tracker that helps you locate items like keys or bags using the Find My app. It features Bluetooth and the U1 chip for Precision Finding (on supported iPhone models), along with a built-in speaker for sound alerts. Rated IP67 for water and dust resistance, it runs on a user-replaceable CR2032 battery that lasts over a year. AirTag offers strong privacy features, including unwanted tracking alerts. Sold separately, with customizable accessories available.