Description: Hand crank generator, the faster the shaking speed, the greater the power, the maximum power is about 20w, great for emergency and power-off situation. The USB port can be chargerd for phone, , mini USB light, fan and other item with USB port, convenient and platical. Metal outer case, with anti-slip foot pads, make it useful and you will feel effortless and time Convenient to assembly, easy to carry, portable generator for outdoors use. It can be actively applied in fields, field operations, field trips, rescue operations, natural disasters, survival training, emergency communications, long-term power shortage, tourism, emergency power, etc. Specification: Model: F20 Color: Blue Stable Power: 3v/6.6A, 5v/4A, 6v/3.3A, 9v/2.2A, 12v/1.6A, 15v/1.3A for selection Max Cranking power: 20W Rotating speed: 2000rmp/min Package Includes: 1x Generator 1x Handle(2 Pack) : 1. Faster rocking for higher generation power and voltage. 3. Please adjust the voltage to 5V before you using USB interface. 3. Shake the generator output voltage must be biger than the setting voltage to regulate theoutput voltage. 4.Hand crank generator, the faster the shaking speed, the greater the power, the peak power is about 20w