Features:1. High-efficiency: Cranking 1 minute can make 3 LEDs light for more than 30 minutes.2. Cranking 1 minute can make radio work for 7 minutes.3. Cranking 1 minute can make the warning function work for 10 minutes.4. 3 LEDs can light for 8 hours , the radio can work for 100 minutes and warning for 150 minutes after the battery be charged fully.5. High brightness: the Max. brightness is 42000 Mcd.6. Perfect charging effect: Cranking 3 minutes can make mobilephone work for 2-8 minutes.7. Complete functions: Charging for mobilephone,radio,lighting and warning are all included.8. Convenient to use, never to change battery, cranking to charge.9. Exquisite and lovely sculpt.