Material: ABS+ Electronic Components+SiliconeBattery Specifications:18650 Li-ion 1200mAh - 3.7VInput Voltage: 5VInput Current:0.5-1ASpeed Regulation: Low-HighBattery Charging Time: about 3-4 hoursWorking Time: Gear1 can use 3 hours, Gear2 can last 2 hoursSize: 106*210*112mmWight: 123gPower: 3W