One click the power button to easily open and start the fan. It has smart digital display ,shows the fan speed and battery level, Fan speed have 3 modes , Press the power button for the first time to turn on the fan in first gear, second time to turn second gear, third time to turn third gear and next time to turn off, When charging the fan ,the smart digital display is showing the battery level and it blinking. Fully charges the battery level is always on. Due to right angle design can be placed smoothly on the desktop