Volume Lock Control - volume locker
Volume control is a very useful app in order to adjust the sound.
There is a separate lock function for each volume, I will prevent unintended sound will change.
Sound Control is able to feel the convenience in the regulation of sound in a simple widget.
You can check directly from the top status bar when using the sound lock function.

Volume control
- Ringtone, Media(Music, video, games and other media), Alarm, Voice Call, Notifications, system

Volume Lock
- can lock each volume streams.
- can lock ringer mode . ( Silent, Vibrate)

Sound Mode ( Change ringermodes )
- Normal, Silent, Vibrate

Change Sound => Setting
- Device ringtone, Device notifications, Device alarm