Turkish on 22 August 2016
The supplemental device is the handheld portion of the console, which is a dock on which you put the handheld on to game on TV.
Meaning: higher clocked cpu and gpu, games probably have dynamic resolution, I guess 540p for the handheld and 720p/1080p when connected to the docking station.
So no more separate versions of games like Mario Kart, Smash Bros etc from now on
