id America LED 5200mAh Portable Charger - Black High-capacity 5200mAh Samsung-sourced lithium-ion battery powers the L.E.D High-output LED lights with 3 different brightness settings controlled via touch-sensitive interface 2A charging output provides sufficient power for tablets and smartphones Built-in safety features ensure that the L.E.D operates in an optimal condition - short circuit / overload / low-discharge / over-charge protection Built-in magnet inside provides versatile mounting on virtually any metal surfaces - refrigerators, file cabinet, desks and chairs