I’m ready to start toning. How do I control my Slendertone CoreFit?

After setting up your belt, turn on the controller by pressing and holding the power button for 2 seconds.  Press the + button to begin increasing the intensity.

This automatically starts the countdown timer of the program you selected.  You can pause this at any time by pressing the power button.  Press it again to resume/stop or hold down to switch off.