Mophie Power Reserve 2X (5,200 mAh) - Black - for iPhone X 8 Plus 8 7 Plus 7 Samsung Galaxy S9 Plus S9 S8 S7 Note 9 8 7 Compact and reliazble mobile power solution for smartphones LED Battery Level Indicators - Displays battery level and charge status USB Output / Micro USB Input Pre-Charged - Ready for use out of the box