Iphone portable power for iPhone 3G/3GS 8GB 16GB 32GB

Detailed Product Description:

Input : DC 5V--0.5V
Output : DC 5V--0.5V

Features:
Act as an extra battery or charging cradle for iPhone 3G 3GS
Perfect solution to charge iPhone when out with this portable power station .
Unique holder design, very simple and convenient to carry.
Use iPhone when charging and easy to access to the phones function.
Supplied with a Mini-USB 5 pin USB cable
Power station features a USB output port that also can charge for your another mobile phone, such as Nokia, Samsung, Sony Ericsson if you have its USB cable.
Battery capacity display: press the "Middle" button, there are 4 LEDS displaying the battery capacity if full charged (4LEDs lighting for 100%, 3LEDs lighting for 75%, 2LEDs lighting for 50%, 1LEDs lighting for 25% and charge indicator when you press the "Middle" button)
No memory effect
Charging via the computer or AC adapter with the USB cable, easy to take and charge
Compatible with iPhone 3G/3GS 8GB 16GB 32GB.

Recharge your iPhone 3G in a convenient way
Access to key buttons and ports
Also serves as a docking station
LED indicator when power is on
Includes silicone skin case for the portable power station

Description:
This is a remarkable designed external battery for Apple iPhone. It's specially made for traveler who need additional power for a long trip. Whenever you run out of the power, simply press the power button on the station base, then you can charge your iphone.
Also The USB output port of portable power can charge other mobile phone, MP3, MP4 and PDA.
It also comes with a user manual.