First thing to clear up is that this isn't the same as the adidas micoach Smart Ball. The NFC tech won't measure your shot power, curl and pass speed – It ain't quite as smart as that. NFC is a digital technology that allows two devices to exchange data,and in this case you can unlock adidas stuff on your phone once connected. The chip? It's located at the top of the ball, under the little wifi-esque symbol. But you already worked that out. So how does it work? Ah yeah, that's why you're here.