Manual crank generator, a nice helper under emergent circumstance. Energy saving, environmental friendly, and it is with many interface type. Multi-function, can charge for cellphone, USB nightlight, USB fan, power bank. Metal outer case more tough, anti-slip foot pad more stable, vintage bearing, effortless and time-saving. Small and exquisite, convenient to assembly, easy to carry, and not with internal power storage function. Practical, suitable for being used in the field, field operations, field trips, rescue operations, natural disasters, survival training, emergency communications, long-term power shortage, tourism, etc. Model: F20 Max Power: 20W Rotating Speed: 2000rmp/min Voltage/Current: 15V/1.3A Output Voltage: Max 28V Item Size: 19.5 x 17 x 8cm / 7.68 x 6.69 x 3.15in (Due to different batches, the labels may be different, which does not affect the use) Material: Metal Color: Blue Package Contents: 1 * Manual Crank Generator kit 1 * Spare manual joystick