Hearing aids are tiny yet powerful devices, powered by an equally tiny battery. A battery would typically power a hearing aid with moderate usage for a week however this can vary according to usage.
We know there is nothing more annoying than having to always look for batteries. And just as frustrating not finding the right battery in the store.
That is why all nessa members enjoy a supply of batteries for the life of your subscription, so you will never again have to worry about running out.