Portable 2800mAh Micro USB External Battery

Color: White/Black/Red(Please choose which color you need or send in random)
Output interface: Micro USB
Charging interface: Micro USB
Capacity: 2800mAh
Working voltage: 3.7V to 4.2V
Input voltage: 5V
Compabile with: mobile phones with micro USB interface, such as: , , etc.
Dimension: 70 x 41x 23 mm(L x W x T)
All Item Weight:83 g