AirTag and Find My question

Yes. The AirPod does not rely on being near your own device.

It issues a bluetooth beacon that can be picked up by other iPhones, iPads, iPod Touches and Macs that then update its location on Apple servers.

The range is in practice almost unlimited, since any Apple device will pick it up and update the location.

People have sent AirTags around the world and tracked them successfully.

The important thing to keep in mind is that the AirTags rely on Apple's "Find My Network" feature. Every iPhone, by default, have this enabled, and as such, participate with it to be able to relay your AirTag's location information to the Apple servers. That is where you can find it via the Find My app.

However, any of those iPhones must be within Bluetooth range (30-40') to pick up that signal ... so, there is always a chance that the tag's location may not be updated ... until another iPhone is present.

Just trying to give you a bit of background on how it works.