Hello, @saradsmejem . . . the wake up training page will allow you to add your voice to help EMO recognize you when you speak to him. You can submit your voice here and it will be included in future firmware updates.
If you are referring to disconnecting the app as unbinding (good to do before opening the app and reconnecting), there are instructions here.
I hope these help you.
There are issues with battery and home station which Living AI are aware of and are working on the problem.