A:AnswerI don't believe so but could be wrong. Only the device owner has access to the tag's location, as far as I know. I would like to share the info myself but don't think it's possible - unless you can log in to the owners Apple acct. They run on Apple's Find My app.
A:AnswerI just used it flying domestically and didn’t have any problems. I don’t think it has a lithium battery. I’m using it on British Airways next week.
A:AnswerI didn't think these were a bluetooth device. Does the iPhone at home detect your dog's location properly? Can you test it by taking the tag a block from home or so and trying to locate it *from your house* using that iPhone? These should work without any type of service or connection - that's kinda the point. Why are you using a separate device as a 'middle-man'? You should be able to add them to your Find My app on any Apple device you're logged into with your Apple ID (perhaps not older models, though).