You feel difficult to concentrate at work or at study? You feel difficult to fall asleep even though you are exhausted? You have tried many ways but it does not work out. This White Noise: Sleep Sounds & Relax is created exactly for you. WHAT IS WHITE NOISE? White Noise is a sound which is a mixture of different noise at different level of frequency. HOW WHITE NOISE CAN HELP ME TO CONCENTRATE TO WORK OR EASY TO FALL ASLEEP? Because White Noise contains different noises at different level of f