The minimum requirement is your hearing aids need to support bluetooth.
If yes, read the menu to see how to make your hearing aids into discovery mode. Then click Settings-> Connections → Bluetooth. Then your device will scan for nearby bluetooth device. Once find it on your phone, tab on the device (hearing aids) and follow instruction to begin pairing. Wait until it is done.
Every make / brand have their own way to pair because of the different designs so your best bet is to follow the specific make's instruction or post the make/model so others can help. Good luck
