8400mah Digital Power Bank With Dual Usb Outputs

Following are the main parameters of 8400mAh Digital Power Bank With Dual USB Outputs:
Item No.: VP030
Type: universal power bank
Cell: 18650 Li-ion battery
Capacity: 6000mAh/6600mAh/7800mAh/8400mAh
Input: DC 5V 1A
Output: DC 5V 1A/2.1A
Size: 75.6*75.6*22mm
Net Weight: 195g
Material: structure of PC and metal
Colors: Blue
Certificate: FCC, CE, RoHS
Other parameters:
Input port: micro USB
Output port: single USB
Power indicator: 4 lights
Cycle life: >500times
Safety protection: over-charge, over-discharge, over-current, over-voltage, short-circuit, over-load and more
Operating environment: -10 to 45A C, 45 to 75% RH
Storage environment: -5 to 30A C, 45 to 75% RH
Special features:
Triple safety protection
Digital display for the power
Double outputs, structure of PC and metal
Portable charger for Mobile, GPS, MP3/MP4, Tablet PC and so on