"Tiny Cooling Fan" infrared sensor that can sense heat signals around the area. Once someone in the room, it will open automatically, and at 85 degrees to this person continuously blowing cold air. "Tiny Cooling Fan" can simultaneously track more than one person; if it finds more than one person in the room, then immediately adjust the direction of rotation so that the cold wind blow against everyone. If you are not in default in within a minute found the coverage of people, "Tiny Cooling Fan" will automatically shut down and stop hair.