Very portable. After ti's being fully charged, you can use it to charge your mobile phone, MP3&MP4 and other digital device

Batter type                Lithium-ion Polymer battery

Cycle life                               500 cycles

Nominal in-put                   DC4.8~5.8V/600mA

Nominal out-put                 DC5.4±0.2V/300mA

Capcity                            

Dimension                     92.5×57.4×13.8mm

Weight                                      100g

Colour                                  Optional

Charging time                      About 8 hours