NES30 Pro 8BitDo Controller config

I've just bought the Android app for my Nexus but I can't seem to set up my NES30 Pro Controller and it doesn't appear in the list of Bluetooth controllers.

How do I set it up? Can I not map the buttons like most emulators?

Thanks..

Here's a link to the controller...
http://www.8bitdo.com/nes30pro/