It is designed to be your personal white noise generator to ensure a better sleep and a quiet rest. Powered by USB, it dynamically produces soothing white noise in the sound of your choice of waves, rain or storm. The top is tilted forward and the bu-ttons are in an obvious position to customize the pitch and volume of the selected sound and to automatically turn off the timer. It is ideal for relaxation, learning, voice privacy or any situation where you want to better control the sound