there is also a USB-A port for legacy gadgets. you'll be able to charge the Anker 733 by plugging it to the wall or you are able to plug in among the list of USB-C ports to cost the battery.  Bluetooth earphones and https://idarunb778594.pointblog.net/shoping-mobile-accserise-hedphone-earphone-power-bank-things-to-know-before-you-buy-71316523