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