1. No batteries, charge instantly. 2. 1min wind-up gives 30 mins of light 3. 3mins wind-up gives 8 mins of mobile phone 4. Environmental protective, Energy saving, Easy carrying, 5. Exquisite design and Excellent quality, lifespan: 10 years 6. Suitable for Nokia, Samsung, Sony Ericsson, Motorola, etc. 7. Perfect for camping, indoor work,outdoor work, emergency, etc. 8. Body Material: ABS; 9. Body sides: Silica gel, odorless, dustproof; 10. Super bright 3Leds (15, 000MCD): 11. Built-in rechargeable Lithium battery, 3. 6V, 120Mah, allowed to recharge over 500times 12. Dimention:132*46*42mm, NW:122g 13: Package: 28pcs per carton Quantity:28pcs per carton NW: 5.3KG GW: 6.0KG Measurement:37*30*30CM