Product name: USB air circulation fanInput current: 5V0.5-1ABattery: 18650-3.7V lithium ionGear selection: optional third gearThe output voltage: 4.5WColor selection: silver / goldCharging time: 1 full hourOperating hours: more than 3 hours Material: ABSPackage weight: 0.563 kgPackage size (L x W x H): 21.00 x 21.00 x 8.00 cm / 8.27 x 8.27 x 3.15 inchesPackage Content: 1 x Fan, 1 x Charging Cable