Can you 2 bluetooth controllers 1 device for emulators?

I bought Super Retro to play SNES games and I have 2 MOGA controllers and a Steel Series controller and I can't find anything about using two bluetooth controllers on one device. I have a S4, Note 4, Tab Pro 8.4 and a Nexus Player. I just want to play Super Mario with my girl on my TV if possible. Thanks for any help and sorry if this is in the wrong place.