Romas WA30 is still very powerful in terms of function, with a large capacity of 30000mAh, easily meet the power needs of the equipment; Charging\/storage, the first line is done, more convenient to use; Dual-port output design, support 2.1A fast charging, double the charging efficiency, \"two-pronged\"; The built-in Fit charge technology is also intimately compatible with your various devices. It can be said that Roma Shi WA30 is a very excellent mobile power supply, I believe that its function will not let you down.