Leafless Hanging Neck Fan Mini Handheld Fan USB Rechargeable Fan 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 Parameter: 1. Voltage: DC5V 2. Current: 1A 3. Power: 5W 4. Gear position: 3 gears 5. Product material: ABS+PC 6. Battery capacity: 2000mah 7. Battery life: 2-10 hours 8. Charging time: about 3 hours 9. Charging mode: TYPE-C charging 10. Product size: 128 x 86 x 38mm 11. Weight: about 140g