Hot 12000mah power bank,Wholesale china

Feature: 　Size: 161*25*25mm Color: white, black 　Battery Cell: 18650 　Capacity: 12000mah 　Input: DC5V 1A 　Output: DC5V 2.1A 　Weight: 189g 　Charging time: 3-4hours 　Application: Smartphone, Tablet, Phone and all digital devices Advantage: double USB output, good quality cell, safe, fashion