It sends alerts to the thief's iPhone or Android (if you have Apple's Tracker Detect Android app) that they are being tracked within 30 to 60 minutes. It also enables the beeping so the thief can find and remove the Airtag.
If the Airtag can't reach the thief's phone, it starts chirping by itself within an 8-24 hour window.
If the Airtag can't reach the thief's phone, it starts chirping by itself within an 8-24 hour window.