The frequencies range around 9.5k to 11k Hertz for Medium, 14k to 15k Hertz for High, and 16k to 20k Hertz for Very High.
The average person can hear up to around 15k Hertz, so please do not despair when you cannot hear the frequencies for the 'Very High' frequency setting.
Warning: Just because you cannot hear a frequency does not mean you cannot be affected by it, therefore please do take care to never put the sounds on full volume over the earphones.
Before using this app, please do remember to:
1. Set the volume over speakers or earphones to 50% 2. Select any button from 1 to 9 to test the sound. (Please send me a message if there is no sound coming out) 3.Once comfortable, adjust the volume. 4.If you want the sound to stop, press 'Stop' to stop the sound. 5. Only one sound can be played at one time. 6. Get comfortable with the sounds. 7.Turn off Wi-Fi and turn on the Airplane mode **Very Important!** 8.Turn off the screen and go to bed.
Then you will wake up feeling refreshed! This difference can be felt right after you wake up from using this app. Best results are seen when earphones are attached. ... Read more