You can create your own favorite mixes for relaxation, sleeping or concentration. For example, you can make sounds such as cafe on a rainy day, calming beach with gentle wind and so on. Benefits of hearing white noise- Helps you sleep by blocking out disturbing sounds- Helps babies to relax and sleep better- Helps you concentrate- Promotes relaxation- Reduces stress- Soothes headaches and migraines What is White Noise? White Noise is created by a continuum of frequencies equally distributed over the whole hearing range. White noise is used to treat hyperacusis, an increased sensitivity to normal environmental sounds, or to camouflage the annoyance caused by tinnitus, a ringing in the ear occurring without any stimulus. White noise is also used to mask background noises in the office, or to aid in sleep. How does this app work? Mix: You can create your own mixes. Easy: Just click the sound icon what you want to play. Free: You can hear all sounds for free. [Permission]READ_PHONE_STATE: for stoping noise to prevent ignoring call when you receive call below android version 6. 0PROCESS_OUTGOING_CALLS: for stoping noise to prevent ignoring call when you call.