Compatible with:
iPod classic 80GB
iPod 1st generation 40GB
iPhone 4GB, 8GB, 16GB
iPhone 3G 8GB, 16GB
iPhone 3Gs 16GB, 32GB
iPhone 4 16GB, 32GB.

Features:
Designed to provide power for your iPhone or iPod.
Built-in 2000mAh high capacity rechargeable Li-Ion battery.
With a stand on the battery.
Extremely compact and lightweight.
Modern black color, decent design.
4 LED power indicator.
Battery itself charged through USB port or USB charging adapter.

Specifications:
Battery type: Lithium-ion battery
Capacity: 2000mAh
Input: 5V 1A
Output: 5V 1A
Charge time: 3 hours
Standby time: Up to 230 hours
Talk time: Up to 4 hours on 3G; up to 3 hours on 2G
Internet use: Up to 4 hours
Audio play: Up to 18 hours
Video play: Up to 5 hours
Color: Black
Item dimensions: 65*58*14mm
Item weight: 43g
Package dimensions: 180*100*17mm
Package weight: 91g

Package Includes:
1 * External Battery for iPhone iPod
1 * USB Cable