Grantwood Technology's Visible Flow Green Light, White Cable for Charging and Syncing all iPhone, iPad and USB 30 pin iPods, MFI / Apple Certified, Premium Quality The light varies with the speed of the charging of your iPhone, iPad or iPod Uses electroluminescent technology, Made for iPhone/iPad/iPod (MFI) Certified Once charged the light turns off, but keeps your device charged Allows charging and syncing of your iPad, iPhone or iPod Compatible with all iPhones, iPads and USB 30 pin iPods including iPod touch, iPod Classic, iPod nano