Brief introduction:

1. ABS high strength housing, goodlooking, well sold as promotional gift around the world.

2. Crank to generate power with its built-in RF-300 generator & 40mAh Li-ion battery, which can be charged and discharged more than 500 times. It will bring 10 minutes lighting with a minute cranking

3. Energy saving & environmental friendly, never need to change battery, cranking to recharge.