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. 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. 1x Generator 1x Handle(2 Pack). Faster rocking for higher generation power and voltage.Please adjust the voltage to 5V before you using USB interface. Shake the generator output voltage must be biger than the setting voltage to regulate theoutput voltage. Hand crank generator, the faster the shaking speed, the greater the power, the peak power is about 20w. People always bought together with. This item is in the category "Mobile Phones & Communication\Mobile Phone Accessories\Chargers & Docks". The seller is "cldepot" and is located in this country: GB. This item can be shipped worldwide.