I am now wearing Naída Q Ric and have been wearing Phonak for decades.
Phonak did manufacture a Naída version with the B chip but only with a rechargeable battery (Naída B R RIC).
They did manufacture a BTE version of Naída B with regular batteries. But I would not consider BTE, only RIC.
I hope that the Naída Marvel will also become available as RIC with regular batteries.
Else I will have to check worthy hearing aids from another brand.