High Capacity, 8400mAh; 4 full charges or add 33 hours of talk time to your iPhone 4S / 4G / 3GS; 2-3 full charges for Samsung Galaxy S III, or 300% - 400% to most mobile phones" battery life * Compact, portable & stylish design; Easily fits into your bag - to provide instant power; PERFECT for long plane flights, road trips, or whenever you need to charge your mobile devices wherever you are * Samsung Grade A cells high quality Lithium-ion battery ensures reliability; 500 + recharge cycles over the life of the battery * Output: 2 x 5V USB ports for fast dual charge: 2A port / 1A port (improved from 0.6A for faster charging); LED indicators reveal the battery level; Convenient flashlight updated to prevent accidental activation: lights only after pressing the power button for 2 seconds; Input: 5V 1A, Astro2 charges via standard USB or AC adapter (not included) * Package includes: Anker External Battery / 3 connectors for most phones / 2 USB power wires (70CM and 15CM) / 1 user manual / 1 convenient travel pouch