Mt. Sound - calming bird voice

Mt. Sound is a simple player that keeps playing bird and river sound.
Please use the app when you want to be relaxed, or focus on work.
 Timer function can be set from some minutes to hours.

--- This app is used when ---
- Concentrating on study for examinations
- Being relaxed to sleep
- Calming down and changing the mood to create something

----- Features -----
- Sound Control
Press play-pause button on the screen.

- Change background images
Press picture button and use your own photo for the background.

- Pause Timer
Press timer button and control the picker and press "Set".
After the time passes, the sound stops.
To cancel the timer, control the picker to "Off", and press "Set".
When the time timer is set, the app plays sound automatically.

- Screen Display
To enjoy the view without buttons, tap anywhere except for buttons on the screen. 

- Background Play
After the app goes into background, it continues to play the sound automatically.
While listening to the sound, you can use some other app (if sound is not used in the app).

*This app is made with React Native.