Baby sleep sounds.
Monotonous sounds to sleeping children are calming for babies because they resemble natural sounds that a child hears during pregnancy.
Using the application is very simple, just put the phone in a suitable distance from the child, choose a sound and set a timer that turns off the application after a specified time. After a short time the child should calm down, stop crying and fall asleep quickly.
The application has a variety of sleep sounds (from reminiscent of white noise to the sounds of nature): hair dryer, the sound of washing machines, the sound of a vacuum cleaner, motor of vehicle, train, subway, laundry dryer, windshield wipers, mountain stream, dripping water, music box (lullaby), shower.