PLYMOUTH, MN (MARKET WIRE) Research conducted by the Better Hearing Institute (BHI) concludes that the top priority for individuals who require a hearing aid is that the device be invisible. Today, thanks to advanced and powerful micro-technology, that requirement can be met by devices like the new Mirage hearing aid from Miracle-Ear®. The Mirage device employs digital, fully programmable technology and is custom-fitted to the client's ear, making it 100% invisible when in use.