Use your phone to display cards asareferee.Choose a card (yellow or red) and shake the phone to show thecardand listen the referee whistle.Key words: football, soccer, yellow, red, card, whistle,referee,penalty.
Use your phone to display cards as a soccerreferee.Choose a card (yellow or red) and shake the phone to show the cardand listen the referee whistle.Key words: football, yellow, red, card, whistle, referee.
