Equipped with a high-performances brushless motor, the speed can reach up to 18000 revolutions per minutes Five leaves stir at high speed, instantly sending out strong cool air, making it easy to cope with hot weather Compact size, easy to fit into a pocket Quiet operate below 36dB, without disturbing offices or study Unique styles design, with ruggedly lines and a strong senses of technology, making it both a cooling tool and a trendy item Innovative battery compartment design, 1800mAh large capacity battery can be quickly disassembled and replaced, and supports USB charging for long-term outdoor use The LED intelligent digital display screen displays the battery levels / gear in real-time, and the wind speeds can be adjusted to 199 levels, ranging from gentle breezes to strong wind, to meet the needs of different scenarios