Bought the CS50 based on recommendation of a well-known Consumer magazine Report. Far less expensive than a hearing aid. Battery lasts most of the day while the second one is in the charger; easy to swap out. Smartphone app allows configuration and customization. Never had the ear piece get stuck in my ear, unlike the other review. I use the bluetooth feature only when using the smartphone for directions and it works well.
Rating: [5 of 5 Stars!]