They are Signia Pure Charge&ago IX hearing aids, rebadged as “Horizon”.
They are very good hearing aids, but they are not some innovative breakthrough. You can read all about them on the Signia website and about the IX technology. Any independent reviews of the Signia Pure Charge&Go IX will tell you all you need about Horizon IX https://www.hearingtracker.com/hearing-aids/hear-com-horizon-go-ix.
Horizon is the house brand of Hear.com, which is owned by Widex/Signia Audiology (WSA) and is one of their distribution arms.