Specifications ● Material: Metal ● Max power: 20W ● Voltage/Current: 3V/6.6A, 5V/4A,6V/3.3A, 9V/2.2A,12V/1.6A, 15V/1.3A ● Size: 17*8*9 cm / 6.7*3.1*3.5 inch ● Weight: 800g / 1.8 lbs Package Included ● 1x USB Generator ● 1x User Manual Lightweight hand-operated 20W generator, suitable for camping, travel, field operation/work, survival training, long-term power shortage, natural disasters, and other uses Power generated to be proportional with cranking speed A variety of interfaces for choices Also able to manually charge various electronic devices (actual current to vary with the battery capacity of the charged devices) Sufficient vent holes on both sides to provide better heat dissipation