Ask HN: Limitless: A New (to-good-to-be-true?) AI Gadget?

I spotted an ad for a new product in development (Shipping Q4) that seems to offer some very interesting features. However, I had some nagging doubts, even though the product is not all that expensive ($99 + $15 shipping). Limitless appears to be the new name for "Rewind.ai", and Rewind had a product called the Rewind Pendant, that has features a lot like the new Limitless pendant, and the old product was priced at only $59.

Has anyone here looked into the Limitless AI Pendant, and would you be willing to share your thoughts?