Specification:Material: ABS plasticsInput Voltage: DC 5V1A-2.1AOutput Current: 1.5AOperating Voltage: DC3.7VBattery Capacity: 2000mAhPower Consumption: 2.5WCharging time: about 4hWorking Time: 4.5-10h (Battery consumption varies depending on the wind speed)Color: White/BlackSize: 220×80×45mm /8.66×3.15×1.77inUsb charging line length: 80cmQuantity: 1 SetPackage:1 x Desk Fan.1 x USB Cable