king@TKing-HP-PC:~$ grep -R volume /usr/share/applications; ls /usr/bin | grep volume
/usr/share/applications/gnome-sound-nua-panel.desktop:Comment=Change sound volume and sound events
/usr/share/applications/gnome-sound-nua-panel.desktop:Icon=multimedia-volume-control
/usr/share/applications/gnome-sound-panel.desktop:Comment=Change sound volume and sound events
/usr/share/applications/gnome-sound-panel.desktop:Icon=multimedia-volume-control
tking@TKing-HP-PC:~$ gnome-volume-control