2nd Generation Astro Mini Portable Charger External Battery Power BankA charging station in the palm of your hand.PowerIQ Detects your device. Delivers the fastest charge.Exclusive to Anker, PowerIQ amp-adjustment technology intelligently identifies your device to deliver its fastest possible charge.High CapacityAdd over a full charge to an iPhone, almost one full charge to your Galaxy S5 or at least one full charge to most other smartphones.Same Size, More PowerThe original lipstick tube design. Now upgraded with higher density cells and efficiency 10% above most other brands to give you 6% more power.Superior QualityWe use only premium LG cells, together with the most advanced materials and cutting-edge technology, to ensure complete safety.For Optimal Use:• Use the included cable, your original cable or a third-party certified one (such as MFi). Buy an Anker lightening or micro cable if required.• Compatible with Apple and Android smartphones, tablets (including the Nexus 7) and other USB-charged devices except for the iPod nano, iPod Classic, HP TouchPad, LG G2, Asus and some GPS and Bluetooth devices.