Power station case,battery charger,mobile phone charger 1.Description : Perfect solution to charge your 3G iPhone /iphone when out with this portable power station. High capacity 2100mAh Li-Polymer battery unbinds you from the worry of power shortage of your iPhone. Unique holder design,very simple and convenient to carry and use your iPhone. when charging, easy to access to the phone's function. 2.Specifications: Color: White or Brown Input Capacity: Max. 500mA Output Voltage: DC5.0V±0.2V Output Capacity: Max. 800mA Capacity: 2100mAh Li-ion Cell Dimension: 120x 60x 23 mm Weight: 125g 3.Operating Instruction: 1. Pls use USB DC adapter DC5V 1A.Insert DC pin of original iPhone USB charger to iPhone external battery pack socket. 2. Insert AC pin to socket to have it work, and the indicator light turns to red. 3. The battery be fully charged, and the indicator light turns to green. 4. On-off function: ON: Power On-Press Bottom on the front side for two seconds to make battery pack work and it starts to supply power to iPhone. OFF: The battery pack being sleep state