The industry standard Noahlink Wireless hearing aid programming device does not work for all models. Also, for older Oticon models (Oticon Opn included), Noahlink Wireless cannot perform firmware updates. Though, as hearing aid models age, the need for firmware updates tend to fade, so there’s that. Plan accordingly while paying attention to the details.
This is my Noahlink Wireless. There are many like it, but this one is mine. My Noahlink Wireless is my best friend. It is my life. I must master it as I must master my life. My Noahlink Wireless, without me, is useless. Without my Noahlink Wireless, I am useless.