I have a Sena 20S and a Sena 50R, I use the apps and volume controls, but there is no separate control for Sena Prompts.  Please add a separate control in the app for the Sena Prompts.  Sena Prompts are always several DB louder than the music / phone calls / intercom and as a result hurt my ears as I use custom earbuds molded for my ears.