If your loop system on your hearing aid doesn't seem to be working, check the building you are in has it switched on.
Nuheara IQbuds Boost Hearable
The IQbuds BOOST with Ear ID are innovative hearing buds that learn and automatically adapt to your unique hearing profile. BOOST will transform the way you hear and connect to your world. The perfect enhanced hearing device for when you’re not yet ready for a hearing aid.
https://www.nuheara.com/app/en/user-manual/ - provides the Nuhear IQbuds Boost User Guide