A:AnswerWhen my tag fell off, it told me it was 4500 miles away from me when I was in Austria and it was in Chicago. It works as long as it's near an iPhone.
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.