Device Layout31 Push the Cover open button to open the charging case.2 Check the direction of each earbud and insert them into the left and right slots of thecharging case.RL3 Close the charging case.4 Connect the USB cable to the USB power adapter (sold separately), and then plug theend of the USB cable into the multi-purpose jack of the charging case.Connecting the charger improperly may cause serious damage to the charging case.Any damage caused by misuse is not covered by the warranty.