This USB C Type C cable is used for charging earphones with charging case that has a USB C port. This is for Bose Sport Earbuds charging case. This is for Samsung Galaxy Buds Live charging case. This is compatible with Bose Sport Earbuds charging case. This is also compatible with Samsung Galaxy Buds Live charging case. This is also compatible with MPow M12, ENACFIRE E60, TOZO NC9, Boltune Bluetooth V5.2 V5.1 V5.0 & More This is not compatible with older earbuds charging cases. If you are not sure if this cable works with your earphones, please contact ienza. Product Details: USB-A to USB-C Type C, 3FT, Black