Sorry to "keep asking" . My goal was to have a system that I don't have to recharge. I have not gotten the BT part working yet and was about to solder the battery wires on. I can easily get a 9 volt at all the theaters I work at, but from what I am getting from you and the forum, I should not use a 9 volt and use 4 AA batteries. Hopefully that will power it for the time I need.
Thanks for posting and I apologize for my ignorance. I have not posted here before and this is all new to me.