Hearing aids.
Summary: Digital aids have been around since 1985 or before. If they are like other digital devices, they should now cost 50 to 100 USD max. There must exist a OPEN standard. Like Cell phones and bluetooth, they must be easy to configure and use. The answers are out there.
1. What are all the different types of digital aids?
2. How can one self test and self fit?
3. Where is the world are aids cheapest?
