Mobile phone portable power station for Blackberry 9900

Product performance:
    Built-in input interface (MICRO)
    Output: the bomb dot matrix, High-capacity lithium battery
    Intelligent charging system, the conversion rate of more than 90%.
    An external power adapter can simultaneously charge the phone
    Compatibility, common to most cell phones and digital consumer electronics products.
Product Specifications:
     Battery Type: Li-ion battery
     Batteries: 3.7V/2000mAh
     Input: DC 5.0V/1A (max)
     Output: DC 5.0V/0.5A ~ 1.0 (max)