Power/Technology: Rechargeable Lithium-Ion battery Input: DC 5V/500mA; Output: 5V/1000mA; Capacity: 2200 mAh; Charge time differs by device Must charge power bank prior to first use; Power bank includes standard USB connector cable to charge battery from your computer or any USB port with a power supply; Aluminum emergency charger includes on/off button and features LED indicator light; Instructions included; FCC approved; UL Certified (UL File # MH60484); WARNING: Refer to the item manual for safety and warning instructions; Product Size: 3.75 w x 1 h x 1 d; Shipping available to contiguous U.S. addresses and Canada via Ground only.  Cannot ship via Air, Internationally or to Alaska, Hawaii, Puerto Rico and any other small U.S. island territory.