SmartTag2 making 3 beeps randomly

[CaptPackrat]

I have two SmartTag2 devices on the two keyrings that I carry on my pocket. At random intervals, one of them makes 3 short beeps in a rising pitch. I can't find any notifications on my phone and NotiStar didn't indicate anything in the history. SmartThings indicates the batteries are "sufficient". (Better be, they're less than 2 weeks old.) It's not the same beep that is made when you press the button on the tags (2 beeps of the same pitch).

What does this beeping mean?

[VerbumVeritum · Accepted solution]

Is this the same noise the Smart Tag makes when you insert the battery? If so, it's possible the one making random beeping might be defective.

[CaptPackrat]

That appears to be the sound. Thank you. Now the hard part will be figuring out which one is doing it, since I have two for two separate keyrings.

[CaptPackrat]

Should the tags be showing up as "Nearby" all the time when they're literally in my pocket, maybe a foot from my phone? A third tag on my laptop bag is constantly showing as "Connected" and it's about 6 feet away.