A technological upgrade to standard wall chargers; Simultaneously charges your phone and battery backup for a true grab and go solution Designed with Smart Charge Technology, which automatically bypasses the battery when fully charged High Capacity 3000mAh Samsung Lithium Ion Battery; Compatible with most USB charged devices With a Charge Input of 100-240V AC and a Charge Output of 5V / 1A, it's twice the speed of a standard USB port Status indicator LEDs allows you to easily check your charge level; Features a smooth rubberized finish