Noontec Polo 5,000mAh Mobile Power Bank + MFI Apple approved (Apple 30 Pin Adapter & Micro USB Included) - Black For iPhone, iPod, and mobile phones High Capacity battery 5000mAh Compact body size and fashion design Use bus power supply to charge Polo Capacity: 5000mAh. 3.7v - Input: DC 5V/1A(max) - Output: DC 5V/1A(max)