LG LGL86C - Manual (Page 23)

22 L86C | User Guide
For more information, refer to "Using the hard reset(Factory reset)" on page
10.
To adjust the volume
On the Home screen, touch the Menu Key > System settings > Sound
> Volumes.
You can adjust Phone ringtone, Notification sound, Touch feedback &
system, Music, video, games and other media and Alarms volume.
Just scroll each volume button to the right or left to adjust then touch OK.