It's possible to ask voice of the bug which begins to sing ahead of the garden as a relaxation sound effect the evening in autumn at night in summer.
●I can choose the voice of random choice or the favorite insect among the voice of 15 kinds of insects.
●I can set a timer at night before sleeping.
●The waxing and waning of the moon are displayed, too.
I think that it is simple, and anyone can easily operate the operation screen.