The MyBeat Group 2 system collects data from all MyBeat devices in the studio, and combines it with each users personal information to generate instant performance feedback.Personal training information such as heart rate, intensity zone, calories expended individually and the sum of the group, last time in each frequency zone, average heart rate during class and the percentage of time in each intensity zone.At the end of the class, the system rewards the student who burned the most calories and the student who stayed the longest in the yellow zone.