As we go through our days at home, at work, and at play, we subject our ears to a number of different listening environments.  We might have a quiet conversation over coffee in the morning, while work may be conducted in offices with multiple distractions and steady background noise.  Because one program on a hearing instrument cannot be expected to perform equally well in different listening environments, many hearing instruments are outfitted with multiple programs.  Each program may be accessed with a push of a button on the instrument or with the use of a remote control.  More sophisticated hearing instruments are capable of analyzing the listening environment and adjusting automatically, without touching the hearing instrument or a remote control.