From the Recycled Sound Website:
“The cost of a pair of hearing aids through the private market ranges from $5000 to $10,000. Many are unable to meet this expense. At Recycled Sound, by collecting donated hearing aids we know we're empowering disadvantaged people to take control of their hearing loss. We also know there are many more people in Australia unable to access the hearing aids they need to reduce the isolation of living with hearing loss”.
Check their website for full up to date details including what they collect and how to make arrangements for your donation. This information was correct at time of publishing.