i need some information for the Bluettooth System

[lm85]

hello
I am student in 5 electronic year, and I am involve to prepare my project of end of study on the bluetooth. I will like to ask you some questions:
1- Bluetooth have a short carried because of its low fuel consumption of power so if we increases in power ,can the carried be longer and why?
2-why Bluetooth uses 3 time slot and how you have defines them? and why exactely 3?

Thank you for your understanding and for giving me some of your time