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Get 코코넨네 old version APK for Android
Provides white noise to calm and put your baby to sleep. Until the day the baby goes to bed!
Prepared similar white noise that calms you down when your baby is in your belly
If you listen to a crying baby, it calms you down, and it is effective when you use it to put the baby to sleep.
Even if an adult uses it, it's good as white noise :-)