This is the worst app ever. I bought my hearing aids, which were very expensive by the way just so I could use this app. It allows you to control the volume individually for each aid. I work in a noisy environment and it is very important that I hear what is being said. I can connect to the app about 30 percent of the time, don't waste your money or time with this app. I have installed and uninstalled many times, sometimes it works but most times not.