Dual USB output with 2 digits power level indicator   

                              
Material:alumnium                       
Battery type:lithium-ion                
Capacity:6600mAh                       
Input: 5V/1A                              
Output:5V/1A                             
Output:5.3V/1.5A                       
Cycle life:500 times                      
Charging time:8 hours                  
Dimension:76*76*22                    
Weight:208g