Verified answer

I'm pretty sure the woman is using an old-fashioned hearing aid.

A ha, I saw that video this morning and had one question. How was the woman getting cell reception in the 1920's. There were no towers, there were no satellites. That must be one heck of a phone.

I don't believe it's a time traveller, how would they have had cell phone reception/etc. in the 1920's?