I wish I'd known about these before Christmas - I have a pregnant daughter and a pregnant daughter-in-law, and this would have been a perfect gift. An opportunity of a lifetime wasted. There are lots of mini-speakers available, of course, but not insertable versions. I suppose that you could just wear it in the proper neighborhood, so to speak.
The little speaker tampon is called "Babypod" and it's shown in action, sort of, in a new video from the gynecology clinic Institut Marquès in Barcelona. In the video, singer Soraya performs a set of Christmas carols for expecting mothers (equipped with Babypods) and their unborn babies. "This is the first concert for fetuses ever held in the world" the video boasts multiple times, even though I highly doubt they did much research before making this claim.
Related, sort of:
Want your vagina steam-cleaned but don't have a spa nearby? Here are the do-it-yourself instructions.