Rated Power: 2WCapacity: Battery Capacity: 800 MahCharging Input: 5V 0.4ACharging Time: 2.5HUse Time: 1-4 HoursProduct Weight: 89G 800 Mah Battery, Charging Time 2.5H, 4 Hours Of Use.Usb Charging, Convenient And Fast, Ready To Go. Employment, Can Be Used To Charge Desktop Computers, Laptops, Charging Heads, Charging Treasures, Car Chargers And Other Equipment.The Portable Mini Fan Is Designed With An Upgraded Turbo. To Maximize Airflow And Provides The Power Needed For Intense Cooling Or Energy-Efficient Airflow.You Can Enjoy A Cool Breeze At Any Time. Inside And Out Outside.Efficient Cooling, Forced Cooling, Say Goodbye To Summer Heat, Enjoy Cool And Refreshing.The Central Part Of The Fan Is A Copper-Free Silent Motor, Without Copper, Which Is At Both Wind And Static, Without Worrying About Noise Interference.