>Shell Material: aluminium alloy    
>Built-in Batteries: 5200mAh/3.7V
>Built-in intelligent IC and multi-protection
for over-charge, over-discharge, over-current, short-circuit and temperature
>Input Voltage: 5V ; Output Voltage: 5.1V 
>Input Current: 700mAh ; Output Current: 1A  / 2A (option)
>Rechargeable up to 500 cycle times;   80% above power available transfer
>Charging time: 5-6h
>Discharging time: 3.5h
>Size: 93×45×21mm    
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>Color: rosy/blue/white/violet