Every so often a "Not Your Beats" prompt pops up on my iPad

Apple acquired the Beats earbuds/headphone line a few years back. One of things Apple did was to provide the technology to include the "Find My" service for the newer Beats devices. Like their Apple AirPods counterparts.

Beats rely on Bluetooth to wirelessly connect to a device ... like your iPad. The typical max. range of Bluetooth is around 30' ... so, if you have a neighbor that close to you, it may be possible that their Beats can be picked up by your iPad's Bluetooth antenna, and potentially why you see this message. Unfortunately, although I have an iPad handy, I don't have any Beats products to verify this for you. Maybe, someone else here who does, will chime in.

This sounds like it is a Find My issue. For example, if someone placed an Apple AirTag on you without your knowledge, your iPad (or iPhone) would detect it and alert you. This, I believe is also true with the Beats.

Is is possible that someone has left one in your apartment? A visiting guest, for example?

Regardless, the only ways to remove this warning, AFAIK, is either the Beats are powered-off, or that you turn off Bluetooth on your iPad. Of course, in the latter case, any Bluetooth devices you would want to use with your iPad, would not work.

Let Apple know directly here: Product Feedback - Apple

Yes, Apple had to make a compromise with their AirTags. They had designed them specifically for helping their owner with locating a misplaced or lost item.

They were not meant to be used to track people or pets. However, that hasn't stopped miscreants for using them to track someone. When this started happening, Apple provided a means for the AirTag to alert someone (not their owner) of its presence.

This, of course, can be confusing to that person, especially if they borrowed an item from the owner of the AirTag, and it starts beeping at you. It also defeats the purpose of preventing a theft, as the thief would be equally provided with its presence (from their iPhone/Android).

People do use them to help track their luggage, like you have mentioned. Just be aware of one thing. An AirTag relies on Bluetooth to send its location signal to either your iPhone or any iPhone nearby with "Find My Network" enabled on it (the default setting on the phone.) In turn, those other iPhones would send that location information to the Apple servers if they have an active Internet connection. The end result then is that you can now see it in the "Find My" app on your iPhone.

You're very welcome! ... and, don't get me wrong. I'm not trying to discourage you with using AirTags. I have a few myself. Just letting you know their current limitations to help you with your buying decisions, or for their use.

This happened to me over and over and over and over again for a 3 hour flight from FLL to MDW. I could not watch any movies for the whole flight. They were not my beats. I don't own beats. This needs to be fixed.