We cannot use any instrument without electricity
Disadvantages- there's risk for injury because of shock
She was not a Pharaoh.
Just a brave woman with a lot of scheming, scamming, controlling, money hungry, backstabbing, men in her life :)
Since no contemporary accounts exist of Cleopatra’s life, it is difficult to piece together her biography with much certainty. Scholars are still debating about her early years. This site describes her travels with her father and a bit of her education.
http://www.ancientegyptonline.co.uk/Cleopatra-early-life.html
She's a fascinating woman.