The Airsketcher, which looks the same as ordinary fans, actually has an astonishing function that it can automatically “follow” the users and bring them with cool air. How? Because there’s a small-sized webcam built inside the fan, which can track a specially-made flag so as to locate the users. Besides, the fan can also recognize different symbols and act accordingly. Therefore the users can easily switch on/off or adjust the speed by showing certain symbols to the fan.