Adidas Football reveals official match ball for the knockout stage of the 2018 Fifa World Cup Russia — Fifa — “The Telstar 18 and Telstar Mechta feature an embedded NFC chip… The chip enables consumers to interact with the ball using a smartphone. Upon interaction, each ball generates a unique identifier, unlocking exclusive content and information for the user. The personalised and location-aware experience displays specific details of each ball and provides access to challenges.”