I want to buy OTC Hearing Aids to save on cost, but what if I…
Open the battery door using the nail grip on your device and let the door gently swing open.
If you have a Premier or Pro model, grab a brand-new size 312 battery. If you have a Shadow model, grab a brand-new size 10 battery. Remove the tab and insert the battery positive (+) or flat side up (as shown below).
Close the compartment door. Your hearing aids are now ready for use.