SmartPhoneComfort automatically sets your ringer mode based on phone position. There are mainly four phone positions:1. Face-down position on a horizontal surface.2. Face-up position on a horizontal surface.3. Vertical position (car mode) - put phone into car dock.4. Other positions - in hand, in pocket, etc.There are mainly four ringer modes:1. Sound only mode;2. Vibro only mode;3. Sound Vibro mode;4. Silent mode;And special