Product Description:Firm and fashion fan structureIntelligent control system, reliable performanceSuper strong wind with long lifeUSB or international standard 18650- battery power supplyBrushless motor and improved PCBRechargeable and portable power, USB input/output

Specification:Input voltage: 5VInput current: 0.5~1AOutput voltage: 5~9VOutput power: 4.5WSpeed mode: 3 rangesCharging time: 5 hoursWorking time: 2-4-8 hoursBattery: 3.7V Li-ion 2200mAh  Material: ABSSize: Approx 140*106*42mmColor: BlackWeight: 327g

Package include:1 x Mini Fan (with package box)1 x Li-ion Battery1 x USB charging cable1 x User Manual