Hi!
I bought 2 Phonak Naida Marvel M90 SP hearing aids.
I’d want to know which is the format serial number of these models, because I didn’t receive them with the box (with serial number and manufacturing day).
I saw the serial number into the Battery compartment, but I’m not sure if them are new or were used for demo or trial.
Thank you!
Previously I used 2 Phonak Naida Venture V70 SP and them was into the box.
You’re ignoring this member’s posts.