... iPhone 3G,3GS,4G,4GS,iPod, iPad 1,iPad2 , and mobile phones.*Designed to provide power for your iPhone, iPad, iPod ... and mobile phones.*Built-in 20000mAh high capacity rechargeable Li-Polymer battery .*20000mAh capability ... .*be compatible with Nokia, iPhone, iPad, MP3, MP4, and other mobile phones...*the USB output, more convenient.*High efficiency of power ...