Charges 2 devices at once!. Dual 2.1 amp USB outputs. Provides 3-5 charges for most smartphones. Charges most tablets, cameras, and other USB devices. Built-in lithium battery recharges from any USB adapter or computer port. Power indicator tells you how much power is left in your backup battery. Includes Micro USB cable and mini USB tip. Comes pre-charged and ready to use. 9000 mAh. UL 1642 and IEC 62133 certified. Brookstone drawstring storage pouch and Brookstone box included