The human body has a programming code called genetics, DNA or what have you and this will affect whether a person has this loss or not. If any of these scenarios sounds familiar to you, help is right around the corner. However, even partial sonus complete is an undesirable condition. This type of sonus complete can generally be treated either medically or surgically and hearing restored to normal.

The affected person will also try to speak loudly every time since he won't be able to hear himself if he speaks normally. Think of it as someone who can still see by squinting. The severity of loss can range from mild to profound. They are electronic devices that work by way of a battery.
http://gtrculture.com/forums/index.php?/topic/24399-sonus-complete-improves-the-clarity-hearing-loss/
https://my.desktopnexus.com/josephreid6/
https://influence.co/josephreid
http://www.web-movimento.it/en/viewtopic.php?pid=337340#p337340