Envoy Medical's Esteem hearing-aid implant is a revolutionary new approach to hearing restoration. Completely unlike any other hearing aid or cochlear implant on the market, it provides significant functional and cosmetic benefits: no device is required for the outer ear, so sound is not obstructed as it passes through the ear canal; there is no artificial amplification of … [Read more...] about Invisible Hearing-Aid Implant Developer Envoy Medical Will Answer $140 Million Question This Year