USAMS Apple iPhone X/XS/XR/XS Max Smart Built-in Battery Case

High Capacity : iPhone X/XS (3200mAh) / iPhone XR(4000mah) / iPhone XS Max (4000 mAh) Charging and protection, convenient and efficient Support audio and data transmission Audio+data transmission, charging, listen to music and data transmission without removing the back case Built-in magnetic iron chip, excellent design Trickling charging, smart chip LED display power status Output: 5V/1A