All of our products come pre-programmed with three or four programs that will suit the needs of over 85% of people. This is because while every person’s hearing needs are a little different, they generally fit into one of three categories. They have a flat hearing loss, a sloping hearing loss or a reverse sloping hearing loss. All of our devices offer a program to suit each of these situations. In additional, all of our devices allow the user to control the volume output to suit their own needs and tastes in any situation.