Just a note: Wireless xbox 360 controllers will not connect to most computer's bluetooth. You have to get something like these: http://www.amazon.com/gp/product/B0076HD2W8/ref=oh_aui_detailpage_o00_s00?ie=UTF8&psc=1
Mine (that one) is pretty fiddly, I had to do this to make it work:
1.Right click on Computer
2.Go to Properties
3.Click on Device Manager
4.Right click on the Unidentified Device
5.Go to Properties
6.Go to the Drive tab
7.Click on "Update Driver"
8.Browse my computer for driver software
9.Let me pick from a list of device drivers on my computer
10.Microsoft Common Controller for Window Class
11."Xbox 360 Wireless Receiver for Windows"
12.Update Driver Warning
13.Click Yes