Built-in high-capacity rechargeable lithium battery, suitable for charging USB-powered devices Three-speed wind adjustment soft or neck cool as you move Free bright lights 1. Click on the colorful lights 2. Press twice to fix the color 3. Press three times to close Can be infused with aromatherapy 1 Unscrew the aroma diffuser cap clockwise 2 aromatherapy tablets into the fan 3 Close the aroma diffuser cover Carefully designed one-button operation Switch three-speed wind power one-button operation is simple and convenient Long press to open a windshield Then press the second wind, then the third wind, and finally long press to end Blue light flashing - working status blue light is always on once charging is complete Red light flashing - low battery red light is always on - charging No display - off state