Portable Hand Crank Emergency GeneratorApplication scenarios: emergency outdoor operations, outdoor travel, emergency situations, field use, field operations, field trips, rescue operations, natural disasters, survival training, emergency communications, long-term energy shortages, tourismFeatures:Multiple interfacesCan charge mobile phones, USB night lights, USB fans and mobile power suppliesMetal shell, non-slip pads, retro design, labor and time savingSmall size, easy to assemble, easy to carry, no internal energy storage functionTechnical Data:Material: MetalColor: BlueMaximum power: 20 WSpeed: 2000 rpmVoltage / current: 3 V / 6.6 A, 5 V / 4 A, 6 V / 3.3 A, 9 V / 2.2 A, 12 V / 1.6 A, 15 V / 1.3 AMaximum output voltage: 28 VProduct size: 19.5*17*8cm / 7.68*6.69*3.15inPackage weight: 820g / 28.92ozUsage Instructions:The higher the rotating speed, the higher the generated power and voltage. The generator output voltage must be higher than the set voltage to match the output voltage. Before using USB interface, please adjust the voltage to 5V.Charging Instructions:Crank generator can be charged on Android phones, but not iPhone. Charging time mainly depends on phone battery capacity. If the phone's battery capacity is 2000mAh, it will take about 4 hours to fully charge.Supported charging objects:Portable devices: low-power communication stations, walkie-talkies, laptops, PDAs, mobile phones, cameras, digital cameras, CDs music players, MP4s, MP3s, portable mobile TVs, DVDs, radios, lighting equipment, flashlights, various types of lamps, power tools, automobiles and various measuring instrumentsBatteries: lithium batteries, nickel-metal hydride batteries, lead-acid batteries and other types of batteriesPacking List:1 * Portable Hand Crank Generator