Specification                                            
Battery capacity:6600mAh                                  
DC Input: 5V/2.1A                                           
USB1 Output: 5V/1A                                      
USB2 Output:  5V/2.1A                                         
Size:97(L)*52(W)*19.2(H)mm  

1.Triple system security With Intelligent circuit used;                                                     
2.International portable power technology&Intelligent circuit control(charge control;charge protection;discharge protection;overload protection;short-circuit protection);                                                                      
3.Power bank for various brands of mobiles,MP3,MP4,MP5,GPS,Digital Frame,Video Camera and other portable digital items;                                                                                                              
4.LED indicators for charging status;                                                                                        
5.With two USB output port；                                                                                                  
6.90% transfer efficiency;                                                                                                      
7.high quality of Li-ion polymer core                                                                                          
8.High compatibility&Small size&cost-effective;                                                                          
9.One year warranty                                                                                                               
Note:if the product specification above is some different from what you require actually, pls hopefully tell us the details about what you want , we will be pleased to help you find the most compatible one!