If "Tiny Cooling Fan" is not powered on, it is difficult to find the difference between smart fan with traditional fan. When the power is turned on, the screen is easy to see displayed under Wi-Fi indicator. In the absence of Wi-Fi network connection, Wi-Fi indicator light flashes until a connection is available in the Wi-Fi network. "Tiny Cooling Fan" knob is used to adjust the display to the right of the fan air flow, and set the timer off time. "Tiny Cooling Fan" below the screen from top to bottom is the mode selector button (long press to enter timer mode), shaking his head button and open the key.