Firm and fashion fan structure
Intelligent control system, reliable performance
Super strong wind with long life
USB or international standard 18650- battery power supply
Brushless motor and improved PCB
Rechargeable and portable power, USB input/output
Specification:

Input voltage: 5V
Input current: 0.5~1A
Output voltage: 5~9V
Output power: 4.5W
Speed mode: 3 ranges
Charging time: 5 hours
Working time: 2-4-8 hours
Battery: 3.7V Li-ion 2200mAh
Material: ABS
Size: Approx 140*106*42mm
Color: Black/White
Weight: 327g
Package include:

1 x Mini Fan (with package box)
1 x Li-ion Battery
1 x USB charging cable
1 x User Manual