"Mophie Juice Pack PowerStation DUO for Smartphones & Tablets This device can charge virtually any two USB devices simultaneously with its dual charging ports. The mophie juice pack PowerStation duo is also capable of charging at up to 2.1A, making it perfect for use with even the most power-hungry of tablet devices.This 6000 mAh device is compatible with just about any micro USB device. The PowerStation duo was engineered to provide super high-current charging with an unmatched capacity for its size. With charging output of up to 2.1 amps, the PowerStation duo can handle all power-hungry USB devices, including all generations of iPad.Dual-charging ports2.1 amp charging outputBuilt-in short circuit, overcharge protection6000 mAh batteryBlack soft-touch finish exteriorOuter metal bandFour-light LED indicatorSuper high-current chargingThe juice pack PowerStation duo is fully compatible with every iPhone, iPod and iPad. As a matter of fact, you can charge any two of the three at THE SAME TIME! The PowerStation duo has been designed to charge a variety of USB devices ? specifically smartphones and tablets. We have done extensive testing on a variety of products and can assure you that this device is fully compatible with most smart devices available today.After connecting to a power source, the LED status indicator will start blinking to indicate charging. The lights will turn off after 30 seconds allowing for a good night?s rest. Remember to check the status indicator before you disconnect to make sure you are fully charged."