AirTags can be used to track your pet in a couple of ways, with different range specs:Generally-speaking, you will be able to get a reading on your pet's location (for example, is he at "Home" or he is at an unsanctioned midnight backyard party 4 blocks away in your neighborhood) using the Find My app (on your iPhone) as long as your pet is somewhere within 100 ft or so of *anyone* with an iPhone (including you or the other people living in your neighborhood, or block, or in your town, state, etc). That means you can get a reading on location wherever you are (as long as your pet is relatively near someone with an iPhone, since Apple uses this device network to triangulate location). Note - This does mean AirTags are great if you live in the city or a populated suburb but are not so practical if you're out in the countryside where population density is low. The other method is precision-tracking. AirTags can be used to give you the precise distance and direction of your pet's location if they're within about 100 ft from your iPhone (i.e. its Bluetooth range). It's super useful to use this method to find out for example, that your cat is "23 ft to your left", when he's hiding somewhere inside your house, or when the app says he's already "Home" on your property, but he's hiding under your car and it's dark outside so it's hard to see exactly where he is, etc.