How to import key press sounds?

Solutions

1. Locate 'Turn off playback'---'Upgrade'---'Ringtones' at the bottom right of the settings application, then click on 'Ringtones'.
2. In the resulting dialog box, click 'Browse' in the top right corner to import the desired ringtones.
3. Check the box for the device to which you want to assign the ringtones.
4. Click 'Import, and wait for the confirmation message