Specifications:
*Name:Portable power supply
*Input:   DC5.0V     500mA
*Output:DC5.0V     1000mA
*Capacity:4200mAh  Li-ion
*Weight:  113 g
*Dimension:  111*61*17 mm 

Usage: 

1.Charge the power:  Connect the portable power(IN PORT-MINI USB) with computer/adaptor through USB-to-MINI USB cable.The light indicates red when charging and turns blue when charged full.
2.Charge your digital devices by this power: Connect the portable power(OUT PORT-STANDARD USB) with your devices -Mobile Phone,MP3,MP4,PDA,PSP or Digital Camera through original cable or the accessory cable(choose corresponding connector).Press the button and the light will indicate blue.After the device indicates battery full,press the button for 3 seconds to turn off the power.