Fitness - Straight frog jumping

The video tutorial guides viewers through a physical exercise routine. It starts with instructions on how to position oneself by touching the ground with both hands. The next step involves bending the knees in preparation for a jump. The main action is jumping straight up into the air, which constitutes one repetition. The goal is to complete a total of 15 repetitions of this exercise.

How many repetitions of the exercise are to be performed in total?

What sound is indicated in the background during the exercise instructions?