The Built-in 3,000mAh battery in the Red iPhone 6 4.7 in./6S power case from Lenmar doubles iPhone battery life to help you stay connected and productive. Double your talk, text and surfing time with this stylish two-piece rubberized case that also protects your iPhone from damage. It features an LED charge status indicator that displays remaining power in the battery case and charges your phone and case simultaneously. Please remove any backside screen Protector prior to use as this may cause the case not to fit properly.