Feature:1. Reliable Performance: The hand crank generator is designed according to the requirements of the national military standard. It is waterproof, shockproof, and salt fog proof.2. Environmentally Friendly: Low carbon new technology, rare earth permanent magnet generator, protect the ecological environment.3. Applicable Scenes: 30W hand crank generator can generate electricity normally at high altitude and low temperature.4. Wide Application: The hand crank generator is suitable for small laptop, shortwave radio, regular cell phone, etc.5. Portable Design: The manual generator can generate electricity manually anytime and anywher, small size and light weight, easy to carry.Specification:Item Type: Hand Crank GeneratorMaterial: AlloyColor: GreenPower: 30WFunction: WaterproofWeight: Approx. 975g / 34.4lbProduct Size: Approx. 110x40x65mm / 4.3x1.6x2.6in.Package List:1 x Hand Crank Generator1 x Interface 5.5 Clamp Cable1 x Interface 12 Voltage Regulating Power Line 1 x Interface 12 Clamp Cable2 xEnglish Manual