pairing hearing aids

if they support the std. a2dp bluetooth profile used by all other headsets then

put them into pairing / discovery mode and add them as any other bluetooth headset

Connect a Bluetooth device with your Mac - Apple Support

Luke2019 wrote:

How can I pair my Signia hearing aids to my MacBook Pro?

Contact Signia and ask them how to connect their hearing aids to your MacBook Pro. Follow their procedure or download their app as necessary.