The program rewards physical activity and engagement with virtual medals, points, levels, etc. All players also reward, motivate, and encourage each other with High Fives and Squawk messages. Players also wear the additional hardware (S. Booster). It is held in a wrist band (though some players prefer to carry it in their pocket, or laced onto a shoe). It contains a 3-axis accelerometer to measure the intensity and duration of physical activity.