Lumsing 4000mAh Ultrathin Portable Power Bank External Battery Pack Backup Charger and brushed aluminum shell with embossed metal LOGO design for iPad Air, Mini,iPhone 6,iPhone 6 Plus,iPhone 5S, 5C, 5, 4S, Galaxy S5, S4, S3, Note 3, 4, Nexus 4, 5, 7, 10, HTC One, One 2 (M8), Motorola Droid, LG Optimus, MOTO X and more (Black) 4000 mah of capacity,full charge iphone 5s 2 times,full charge Samsung Galaxy S4 1.5 times. 5V/2.1A output interface; 5V/1.5A input interface, if you use 1.5A adapter it can power itself more quickly to the mobile charge (not equipped), the charging time is about three hours. ultra-thin brushed aluminum shell with embossed metal LOGO, Highlight product quality; Bulit-in LED Flash light Ultra Slim, Palm-Sized Portability. PERFECT for long plane flights, road trips, or whenever you need to charge your mobile devices wherever you are. Made with great A lithium polymer battery and premium microchips,within CE, FCC, ROHS certification ensures reliability; 500 + recharge cycles over the life of the battery.