If you have an iPhone 6, you can add ringtones to your device using iTunes. To do this, you will need to first create a new iTunes account and then select the “Ringtones” tab in the “iTunes Preferences.” Once on this tab, you will need to select the “Add a Ringtone” option and then enter the desired ringtone filename. After clicking on the “Add” button, iTunes will add the desired ringtone to your device.