How Does This APP Work? The sounds in this app can be an effective tool to manage your tinnitus using sound therapy and sound masking to make tinnitus symptoms less noticeable. This masking effect can be particularly effective at night when the surrounding environment is quieter. By listening to pleasant sounds, particularly sounds close to the frequency level of your tinnitus symptoms, your brain will predominantly hear the pleasant sound instead of the annoying tinnitus noise. Features: 6 INCLUDED SOUNDS: - Brown Noise - Cooling Fan - Full Spectrum White Noise - Ocean Surf with White Noise - Rain with White Noise - Stream with White Noise SESSION TIMER - 5 to 120 minute session timer with continuous therapy option. SOFT-OFF VOLUME MANAGEMENT - Full volume control with soft-off volume management.