You should just be like, "Hey, that's cool let me see that" then bash their phone on the floor

I work in a cubicle with a "closed" office next to me. Recently someone moved into the office and she consistently joins meetings with her volume at max. Even with the door shut I can clearly hear everything.

I don't want to hear her meetings. I could at least tolerate it if she was the one speaking, but there is no reason I should be hearing anything from her laptop speakers. Ever.

This doesn't even address the worst offenders of all - the ones that are talking loudly and are on speakerphone with the phone up by their face for all to hear.