For more details, pls check following specification:

Main Features:
Brand new 2600mAh power charger external battery bank
High capacity and high compatible
Durable, lightweight, ultra slim design
Powerful with long operation time
Electricity-saving function
User friendly, long cycle life and rapid charge
Environmental friendliness and Economic efficiency

Specifications: Public Models shell,cell battery,PCBA.
Capacity: 2600mAh
DC IN: 5V/500MAH
DC OUT:5V/1A
Battery type: Li-ion 18650 battery
Compatible with: 
iPhone, iPad, PDA, PSP, GPS,SAMSUNG, HTC MP3/MP4, all digital devices charged via USB port other mobile phone Digital camera
Available colors: black&silver&gold
Product weight: 75 g
Product size (L x W x H): 91*23.5*23.5mm
Package Contents:
1*power bank
1*USB cable
With blister package