Feature: 1. Three-speed wind speed adjustment, strong wind 2. Curved neck hanging, easy to use, release both hands 3. Universal adjustment of the hose, which can blow at multiple angles 4. No leaf fan, don'for t worry about hair getting involved Specification: Input voltage: for DC 5V Battery voltage: 3.7V Input current: 1A Output power: 2-7W Material: ABS/silicone/hardware Battery capacity: 2000mah/4000mAh Charging time: about 5 hours Working time: about 12 hours for the first gear, about 8 hours for the second gear, and about 5 hours for the third gear Product size: 260x260x45mm (expanded) Product net weight: 336g Product gross weight: 430g Color box size: 166x54x238mm Product standard configuration: one fan, one USB data cable, one manual Function operation: The skin-friendly hose rotates and folds 360 degrees to carry it with you. The unique 180-degree rotation of the wind creates the wind at will. The fan can be adjusted in three stages. Click the button for the first for time to switch to the first gear, click the button again to switch to the second gear of the fan Click the button three times to switch to the third gear of the fan; click four times to turn off the fan. The gear indicator light is one to three gears, and the blue light is on. The charging indicator shows: the red light is on when charging, and the red light is off when it is fully charged. Product Keeper: After purchasing the product, please charge it for more than 2 hours before using it Recharge once every three months of storage to avoid battery damage Do not let children aged 0-6 use this product alone