PowerTraveller PMEV2001 is an ultra compact, robust, and highly effective backup battery for your mobile devices. With a 2200mAh battery that can provide power for up to 40 hours, 96 hours, and 1600 pictures for iPods, mobile phones, and digital cameras, respectively, you can rest assured that you will not run out of battery even during extended periods away from a power outlet. The device is compatible with a wide range of devices and comes with multiple connectors to ensure you can connect it to your specific device.