Whether to introduce the high technology in football game is a very  controversial topic, some people think the referee is a part of the  game, if the result of game is controlled by machine, maybe there are  some unfair, so Andy Kurovets designer give referee a third eye that is  digital referee watch, you will be interested it.    Using the technology can avoid some obvious mistakes in games, like  this digital referee watch the shape is like the Bluetooth device. It  does not directly used to determine whether a player fouls, it just used  for information transmission. A referee in the studio to watch the  game, if he find players are foul shot, or whether the ball crossed the  line, and the information will transmit to the field referee by via  Bluetooth, the referee can make the appropriate penalty by watches. So  it can greatly reduce the miscarriage of justice due to some objective  reasons such as referees’ sight blocked or not timely post moves factors  and so on. So it is the best tool for the football game and is really a  referee third eye.