Features: 
-360° Swivel vents provide cool air, greatly increasing comfort.
-The hanging neck fan has a built-in 4000mAh rechargeable battery, 15 hours long battery life. You can use the USB cable to charge before and after use.
-Perfect for personal cooling, indoor cooking, sports, office, camping, travel, walking, fishing, hiking, cycling and other outdoor activities. 

Specification:
Color: blue
Battery capacity: 4000mAh
Input: DC 5V/1A
Material: ABS+metal
Size: 20*18*6cm
Usage time: about 3.5-15 hours
Charging time: about 4-5 hours

Package Included:
1x Hanging neck fan 
1x USB charging cable
1x Manual