Oscillating fan black screen to sleep, study, focus | White noise black screen

Oscillating fan noise to help you sleep, study and focus. The noise of the fan oscillating is relaxing, helping to disconnect from the outside world and this creates an environment to sleep more easily. With this video of fan noise flickering and black screen, your device will consume less internet data and less battery from your device, saving energy and internet. In addition, the black screen helps keep the environment dark, helping you sleep. If you try to put your baby to sleep and he doesn't sleep, turning this noise to low volume for the baby to sleep can help him fall asleep more easily.