Mini electric fan

Empty power mode; lithium battery
Rated voltage; 110V-220V
Rated power; 5W
Rated frequency; 7000 Hz
Applicable area; 100 square meters
Noise; below 36dB
Time to market; spring 2019
Air supply mode; no page turning without shaking head
Wind speed gear; 3 gear (1 wind - 2 wind - the strongest wind)
Mode of operation
Whether to support charging; support
Speed control gear; third gear
Shaking his head; shaking his head up and down