... power 5000mAh/I-phone 4/I-pad /2 usb port Product features: 1. Built-in high-capacity li ... make sure 500 times above charging cycle..2. Two USB output socket, can also charge iPhone , iPad, ... other phones, please use the 500ma USB socket to connect by USB and corresponding connector of the mobile phone ... as: ipad, iphone3G, 4G, mobile phones, MP3, MP4, PSP, etc Portable power bank 5000mAh 2 usb port