Specifications:    
Battery type Li-ion   
Capacity 4000mAh   
In Put 500mAh~1000mAh, 5.0V    
Out Put 1000mAh, 5.2V  
Lighting: With Ledlighting  
Support Most of the phone and the mobile devices   
Storage Temperature  -20℃ ~ +65℃   
Material  Aluminium Alloy   
Certificate CE RoHs UN38.3   
Color Black, Red, Silver, Blue   
Accessory  USB  Cable , connector and  Manual 
Hidden indicator
double indicator:
charging and capacity display
ultra bright led torch