MI 10400mAh External Battery (Power Bank, Portable Charger) with Premium Aluminum Alloy Surface - Compatible with iPhone 5S, iPad Air, Samsung Galaxy S4, Note 3, HTC One, Nokia Lumia, LG Nexus 5, Blackberry-Silver Award-winning aluminum alloy unibody surface. Creative and elegant style with unique design. Silver gloss finish and metal band compliments the design of your iPhone or other devices Constructed using Samsung original Grade A 10400mAh high capacity cells and premium microchips to ensure safety worry-free use. Special high-output battery for ultra-fast charging Unbridled compatibility - Works with all major smart phone and tablet models. To maintain the sleek look, the four invisible LED status indicator lights disappear when you're not using the battery Improved conversion efficiency means more power actually makes it to your device. year manufacture warranty. Package includes external battery charger, Micro USB cable, and user manual