Anker 621 Power Bank's main selling point is its ability to provide power backup for iPhone users while prioritizing lightweight and easy portability. With its built-in 5000mAh capacity battery, it caters to the charging needs of short trips, all while weighing less than a hundred grams and being as small as a lipstick. The integrated retractable Lightning connector, which is Apple MFi certified, allows for convenient charging of iPhones without the need for carrying extra cables. It enables worry-free, travel-light experiences with abundant battery power, stay connected and empowered with this remarkable portable charging companion by your side.