Janko (TM) 13000mAh High Capacity Universal Dual USB Port Portable Power Bank Pack External Battery Backup charger with Built-in LED Display for iPhone 5S, 5C, 5, 4S, 4, iPad Mini/Air, iPods, Samsung Galaxy S4, S3, S2, Note 2/3 HTC One, EVO, Thunderbolt, Incredible, Droid DNA, Motorola ATRIX, Droid, Google Glass, Nexus 4, LG Optimus and More (Powder Blue) The device has automatic shut down once usb is removed High capacity (13000 mAh) charges your phone up to 7 times. Super-fast charge output (5V / 3.1A total) through dual USB ports (5V / 2.1A and 5V / 1A) allow for simultaneous charging of your phones and tablet at high speed. Package contents: Janko External Battery, Micro USB cable, instruction manual.