Rechargeable Lithium Battery, Fan Speed Control
Control: Variable Rotary Speed Control with power off
Working Time: Approximate 1 to 3 hours (Depending on Fan Speed)
Battery: Lithium-ion 18650~3.7v
Charging Time: 4-5 hours (5V Input)
Dimension: 110 x 85 x37 cm
Net Weight: 166g (Include Battery)
Note: Red Light means Charging, Blue Light means Charging is Full.