Some links to detailed official documents about the OUYA Console and Controller.
https://fccid.io/VUI-OUYA1P
https://fccid.io/VUI-OUYA1
https://fccid.io/M6E-FOGE3B0
http://certid.org/fccid/M6E-FOGE3B0
https://industrycanada.co/6632B-FOGE3B0