General Spec Color black Input Voltage 5.5V 500MA Output 5.0V 800MA Function charge for iPhone/iPod etc. Compatibility iPhone and iPod Features Keep your iPhone/iPod playing by letting you power your device even when your internal battery is drained. Great solution for long flights, hikes, or for anytime you don't have access to an AC outlet. Convenient to carry and easy to use. Charging time is around 6-8 hours. Compatible with iPhone 2G/3G/3GS/4G,iPod Touch/Nano. Can be charged via USB port of working PC and laptop or via AC adapter. 4 LED lights capacity indicator.