Status quo "Tiny Cooling Fan" Now, most only manual control, plus a timer, single function. Hazards or deficiencies exist: for example, people often leave after forgetting to turn off fans, not to mention a waste of electricity but also easily lead to a fire, long working hours are also easily damaged appliances. Another example Qianban Ye high temperature "Tiny Cooling Fan" tune higher wind speeds, but the rest of the night the temperature dropped, the wind speed does not change with temperature, easy to catch cold. The reason for the root causes of these risks are generated: the lack of detection of the environment. If you make the "Tiny Cooling Fan" has on the environment to detect the function, when the temperature drops can automatically reduce wind speed and even closed fan, such an action would avoid the above deficiencies.