1.Item: BM2157
2.Name: Credit card power bank
3.Size: 86×56×6mm
4.Li-battery: 1500mAh
5.DC Input: 5.0V / 500mA(Max)
6.DC Output: 5.0V / 600mA(Max)
7.Material: ABS & Aluminum
8.Charging time by USB: 4-5hours
9.Function:  
1)charging mobile phone
2) Battery capacity check
10.Package: White box