Hi masonmjs54
Welcome to the Apple (user-to-user) Community.
Re: I would like to know why my new MAC studio (Dec 22) can't find my hearing aids via bluetooth.
"Before you connect a Bluetooth device with your Mac for the first time, you need to pair them. When a Bluetooth device is paired with your Mac, you can connect or disconnect it using the Bluetooth
menu".
(For Mac OS Ventura (or choose your correct installed MacOS at top of article for accurate info:)
Apple support's article:
How to: Connect wireless accessories – Apple Support
More info:
macOS accessibility features for hearing – Apple Support
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Re: (Oticon hearing aids) not showing up in the devices list on the phone,
At times, there may be a firmware update needed for the hearing aids.
(ie: from your hearing professional, or from Oticon)
Else:
Check that hearing aids are set-up as Apple suggests:
Scroll to: "Pair and connect" in Apple Support's article (link below):
Use Made for iPhone hearing devices – Apple Support
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More info:
Hearing accessibility features in iOS - Apple Support
If you want to check:
These are the Oticon Hearing Aids that are "Compatible with iPhone":
Oticon
FX00*
Opn
Opn S
Opn Play
More*
Play PX*
Ruby
Zircon*
Optim
Siya
Xceed
Xceed Play
Oticon Medical BAHS
Ponto 4
Ponto 5
Sentio 1
from: Made for iPhone compatible hearing devices – Apple Support
All the best :-)