Press the power for about 5 seconds until the unit goes completelly down. Power up again and if the problem presist, I suggest you to contact costomer support. Good Luck!.
Yes of course it is very hard or tough to hear the very low volume. There exist the scientific reason behind this also. It merely depend upon the hearing range of the humans. One may consider the https://www.structuredsettlement-quotes.com/ for all information regarding the same.