Simply wear the shorts and connect them to the app on your smartphone. Next, choose the program corresponding to your fitness level (note: skipping directly to the advanced level is not permitted due to the intensity of the contractions). There are programs available for beginner, intermediate, and advanced levels. After selecting your level, initiate the program and relax as the shorts work on your abs, glutes, or both. The programs are time-controlled and will automatically conclude when completed. Once finished, remove the shorts and store them until your next use. Washing instructions and a specialized bag are provided to help maintain the shorts in excellent condition.