New Full Color Print Business Card Shape 5200mAh Power Banks

Full Color Print Business Card Shape 5200mAh Power Banks PW020

Capacity: 4000mAh - 8000mAh 
Input: 5V/1A
Output: 5V/1A
Shell: super slim metal body for power bank
Color: black/orange/blue/green/pink/customized
Power efficiency: more than 85% 
Attached connectors: For iphone/samsung/htc/nokia/blackberry/ipad/ipod/PSP
Circle life: more than 500 times
Warranty: 1 year
Short circute protection: yes
Over charge protection: yes
Over discharge protection: yes
Over current production: yes
Over voltage production: yes