1000 mAh battery will keep your phone running for hours Inbuilt charge & data cable allows you to charge the device itself and transfer data at the same time. No additional cables are needed Inbuilt charge & data cable allows you to charge the device itself and transfer data, no additional cable needed Great Compact dimensions, almost the size of your car keys, weighting only 2 ounces Comes with an attractive simply clip to add to your key chain, purse, or clothing