1. Release 160 million negative ions, purify the air and make it fresh and natural, just like being in the forest (only negative ion function models) 2. 3 ways of use, neck hanging, handheld, desktop 4. 3 gears of wind speed adjustment, cool in summer 5. Built-in 2000mAh high-capacity battery, battery life 2-10 hours 6. Brushless motor, stable operation and effective noise reduction 7. Wide-angle air supply, natural and comfortable
