ZuZo Echo External Protective iPhone 5 Battery Case - Fits All Versions of iPhone 5 - Lightning Connector Output, MicroUSB Input (Matte Black) The MOST POWERFUL slim battery on the market with 2500mAh of battery life for iphone 5, which adds an additional 125% to iphone 5. Protects iphone with an added shell which doesnt add bulk. The case featuring a MicroUSB input port and lightning output port, and can be charged together with the iPhone via included the MicroUSB cable. The ZuZo Echo is known for its quality and durability which ZuZo carefully uses its own innovative technology. The 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.