Firstsing Waterproof 10000mAh Portable Solar Charger Dual USB Battery Power Bank 

Features:
10000mAh high capacity polymer battery, can recharge itself under sunlight
Dual USB charger ports, universal device compatibility
Elegant small and portable easy to use
4 LED status of charge indicators indicate the charging and discharging process
Comes with a hook so you can simply attach it to your backpack
Super rainproof, shock-resistant and dust proof
They're great as a flashlight or as emergency lighting in darkness, the flashing light mode can be used as SOS
Build-in Polymer battery cells, anti-explosion, lightweight, compact and reliable
Long lifespan with more than 500 recharging times

Specifications:
Capacity: 10000mAh
Input: DC 5V 2.0A
Output1: DC 5.0V 1.0A (Max)
Output2: DC 5.0V 2.1A (Max)
The battery indicator: 4 Led indicators for power balance(0--25%--50%--75%--100%)
Dimensions: 16 x 7.9 x 2cm (L x W x T)
Weight: 220g

Package Included:
1 x Solar Charger
1 x USB Cable
1 x Carabiner

Note:
The efficiency of energy transformation from solar to electric energy is really low(30%)，even in a perfect laboratory condition. When it used in outdoor, it also affected by the weather, the location or others factors. So the solar panel is not good as first choose to recharging. We suggest you recharge it via wall charger at the beginning to make the power battery fully activated.