Romeo BLE mini Doubts

Hi all, 

 

Sorry if my questions are very basic, but I'm completely new in this area.

 

I want to build a PAN - Tilt solution to be controlled from a mobile phone using bluetooth.

 

Can I use Romeo BLE mini without any additional control board?Can I control 2 servos? Which ones do you suggest to “move” the weight of a mobile phone itself?Can I power the board (and servos) from a battery? What type? I need them to last at least 2h with heavy usage in that time

 

Thank you very much