1. Research the Internet for information about the purchase of hearing aids. Determine how a client might make a choice. Is the expense covered by insurance? Medicare? How often do batteries need to be changed? How expensive are batteries? Does the cause of the hearing loss make a difference in the purchase of hearing aids? Identify new products on the market that make it easier for a person to hear with the aids in a larger group. Does the federal government regulate the hearing aid industry in any way?