PRODUCT INSTRUCTION 1.national patents: ★200630197052.9 2. The sheathing material is ABS (transparent and solid color two kind of types) 3. Uses 3 LED, The brightness of LED lamp is above 12000MCD. The led have 100,000 hours of Service life. 4. In sets may charge the nickel hydrogen battery, the hand presses 1 minute sustainable bright 4-5 minute, may circulate uses above for 5 years 5. This product may install light twinkle alarm system 6. The rear part has the rope, facilitates the carryhome. 7.Once this product has, may use for a long time 8. The hand presses the electricity generation to economize also is convenient; The hand presses the fitness to be nimble your both hands