Maxboost iPhone 5S/5 Battery Case - Passion Parallel (Fit Fusion Battery Case for iPhone 5S/5) The powerful 2400mAh built-in battery can effectively provide 120% additional battery life to your iPhone 5/5S, which adds additional 12 hours of talk time and 15 hours of web browsing time. Featuring a fully protective hardshell case with the minimum added bulk. Enjoy the comprehensive protection while still maintain the slim form factor of your iPhone 5 / 5S. Featuring a MicroUSB input port and lightning output port, the case has data and power pass-through enabled. Your iPhone 5/5S can be charged and synced while encased via the included MicroUSB cable. The Maxboost iPhone 5/5S Battery Case is an upgraded version of original Maxboost Atomic battery case. It deploys original Apple Lightning Parts and has passed various Apples lab tests to ensure reliability and compatibility to iPhone 5/5S and any future IOS related update. The iPhone 5/5S Battery Case also has the following functions built-in: charging switch, LED battery level indicator, charge & sync through the case, headphone jack cutout, function button cutouts and hands-free kickstand.