Worried about an unwanted AirTag tracking you? Here's how to block it

Apple's AirTag is a small tracking device that offers approximate location tracking. AirTags utilizes Apple's Find My network and uses Bluetooth to send a signal to other devices on the network, so they don't drain your battery life or require cell service in the way that traditional GPS trackers do. While AirTags are a great way to keep track of your items, and even pets, they can also be abused by nefarious actors to track you without your knowledge.

Source : https://www.pocket-lint.com/how-to-scan-for-unwanted-airtags-apple/