Specification:

Material: Fireproofing ABS shell 
Cell type: A+ Lithium Polymer battery cell 
Input: Micro USB(5V) 
Output: 1.5V 
Charge voltage: 4.25V 
Battery capacity: 6000mAh 
Energy capacity: 6.0Wh 
Charge time: 3 hours 
Compatibility: D battery/LR20 
Color: Black & green 
Size: 32.5*60mm
Features:
Strong practicability, so that you can long-term use.
Replace dry battery perfectly.Energy-saving and durable.
With constant voltage 1.5V and USB wires for convenient charge.
Equipped with Micro USB charge port,which is convenient and efficient.
Intelligent power chip inside to make sure the charge up to 99% with constant voltage.
 
Note: The colors of the USB charging cable are yellow, black, and white. Due to different production batches, the color of the USB charging cable is sent randomly. Please understand that. Hope this cannot be a reason for controversy. thanks