It'll appear on top of your settings page in the app. The volume issue with iOS 10 seems to be fixed Sent from my iPhone using Tapatalk

Appeared in my Bose iOS app today, updated successfully Sent from my iPhone using Tapatalk

Yup, I'm on iOS 10 too, same problem but seems like it's random. Sometimes disconnecting n reconnecting seems to fix it. Otherwise I couldn't notice any other consistent way to fix the problem Sent from my iPhone using Tapatalk