There are a ton of awesome hearing aid features that exist today. However there are 4 that I believe are the biggest game changers and most practical from a treatment standpoint.
#4. Acoustically Optimized Ear Mold Vents - Ear Molds are the most overlooked feature of hearing aids because most hearing care professionals default to generic rubber domes. However, you can't control the vent size to optimize the acoustics of the hearing aid. That is why Phonak identifies the exact correct ear mold vent size to treat specific types of hearing loss allowing you to hear your best by matching your hearing loss prescription.
#3. OpenSound Navigator - The feature that allows the Oticon OPN hearing aid to eliminate the sensation of tunnel vision with hearing aids in a noisy environment made the OPN hearing aids some of the most popular hearing aids on the market over the past 2 years.
It allows you to hear better in background noise without making you face who you want to hear.
#2. Made for iPhone technology - Being able to stream phone calls into both ears significantly improves speech understanding for individuals with hearing loss. Not only that, but you can stream any audio directly from your iPhone into your hearing aids.
#1. AutosenseOS by Phonak - AutosenseOS is the automatic program from Phonak that adjust the hearing aid programming depending on the environment that you are in. The funny thing is that research indicates that it is better at identifying the correct settings for your hearing aids better than a human is. You also don't have to worry about using a push button to change programs because it does this for you.
Just remember, it doesn't matter what features you have in your hearing aids if you haven't had Real Ear Measurement performed on them. To see why Real Ear Measures are the most important factor that will determine your success with hearing aids watch this video: https://youtu.be/cHR0Oa6I-wY