No alternative for those hearing aids. The nx model hearing aids use the Streamline Mic and it works well but it only connects to one device at a time, so if you stream from a tablet, phone calls don’t go through it. I have the Costco version of the Phonak B90 hearing aids and use the Compilot 2, which works great and connects to multiple devices at one time. Really good hearing aids.
The new Phonak Marvel only connects to one device at a time.