8 in 1 Waterproof Dynamo torch with Hammer                   
Built-in battery: 3.7V 120mAh -Lithium.                        
Charging time: 20 mins(hand crank)                               
Using time: lighting(90 mins)//blink(90 mins)                   
Cranking 3mins, support about 15 mins lighting.
LED brightness:2000-2500mcd
Raw Material: ABS+PS
Patent protection                                                Dimension：275*95*58mm