Specification:
- Size:  72(L)*20(W)*20(H)mm
- Input: 1.5V 750mAh-1800mAh
- Output: 5.7V-6.5V 150mAh-430mAh
- Conversion Efficiency: 70-93%
- Easily carrying and usage  
- A safe stream of power to charge  
- One AA battery available to charge mobile phone