F63 Semiconductor Cooling Hanging Neck Fan USB Silent Outdoor Mini Fan(Blue)

1. Up and down wind, cool cooling, quiet and silent, long battery life2. Built-in 324 TEC refrigeration units, good cooling effect, cool in 1 second3. Surrounded by air from top to bottom, it can blow on the chest and back, cooling the whole body4. 100,000-class high-speed motor, strong wind and fast cooling5. Outer centrifugal bladeless turbofan, no twisting6. Comfortable to wear, lightweight material7. Three gears of wind speed are adjustable, and the wind feeling is as you like8. Use in multiple scenes, refreshing and unrestrained9. Rated power: 4w10. Battery capacity: 4000mAh11. Power supply mode: Type-c/USB-c charging/built-in lithium battery12. Charging time: 5 hours13. Use time: Cooling alone: 1.9 hours, fan: 8.3 hours/4.3 hours/3 hours, fan + cooling sheet: 1.37 hours/1.20 hours/1.13 hours14. Rated power supply: 5V15. Rated frequency: 50Hz16. Material: ABS+PP17. Size: 297.5x157.4x180mm18. Net weight: 400g19. Gross weight: 440g